12 letter words are exactly twelve letters long, and hardly any of them are single stems. Most 12 letter words are suffixed forms, so converse becomes conversation. 12 letter words come mostly from medicine and chemistry, and few of them appear in everyday English. So most 12 letter words are technical first and general second. 12 letter words you meet in everyday English are the ones to know first.
12 Letter Words in English
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These forty are the most frequently used twelve letter words in English, ranked by frequency of use in everyday speech and writing.
- Relationship
- Conversation
- Professional
- Neighborhood
- Unbelievable
- Intelligence
- Disappointed
- Embarrassing
- Particularly
- Commissioner
- Construction
- Surveillance
- Headquarters
- Organization
- Instructions
- Consequences
- Fingerprints
- Thanksgiving
- Specifically
- Announcement
- Photographer
- Arrangements
- Instrumental
- Accidentally
- Mademoiselle
- Civilization
- Psychiatrist
- Presentation
- Accomplished
- Championship
- Independence
- Transmission
- Congratulate
- Interrupting
- Prescription
- Deliberately
- Confidential
- Occasionally
- Investigator
- Satisfaction
Every 12 Letter Word From A to Z
Every word here has been checked at exactly twelve letters and against an English dictionary. Within each letter, the more common words come first and the technical ones follow. For neighbouring lengths, see 11 letter words and 13 letter words.
12 Letter Words Starting With A
- Abbreviation
- Abolitionist
- Abominations
- Absentminded
- Absoluteness
- Abstractions
- Academically
- Academicians
- Accelerating
- Acceleration
- Accelerators
- Accentuating
- Accessorized
- Accidentally
- Acclimatized
- Accommodated
- Accommodates
- Accompanying
- Accomplished
- Accomplishes
- Accordionist
- Accoutrement
- Accumulating
- Accumulation
- Accumulators
- Achievements
- Acknowledged
- Acknowledges
- Acoustically
- Acquaintance
- Acquiescence
- Acquisitions
- Adaptability
- Additionally
- Adjudication
- Administered
- Administrate
- Adulteration
- Advancements
- Advantageous
- Aerodynamics
- Aeronautical
- Affectations
- Affectionate
- Affiliations
- Affirmations
- Aforethought
- Afterburners
- Aftereffects
- Afterthought
- Aggressively
- Agribusiness
- Agricultural
- Alliteration
- Alphabetical
- Alphabetized
- Alphanumeric
- Altercations
- Alternatives
- Amalgamation
- Ambidextrous
- Americanized
- Amortization
- Amphetamines
- Amphitheater
- Amphitheatre
- Amphotericin
- Anachronisms
- Anaesthetics
- Anaesthetist
- Anaphylactic
- Anatomically
- Anesthetized
- Annihilating
- Annihilation
- Announcement
- Annunciation
- Antagonistic
- Antagonizing
- Antediluvian
- Anthropology
- Antiaircraft
- Anticipating
- Anticipation
- Anticipatory
- Antifascists
- Antioxidants
- Antithetical
- Aphrodisiacs
- Apothecaries
- Appalachians
- Appendectomy
- Appendicitis
- Appertaining
- Applications
- Appointments
- Appreciating
- Appreciation
- Appreciative
- Apprehending
- Apprehension
- Apprehensive
- Apprenticing
- Approachable
- Appropriated
- Approximated
- Approximates
- Archeologist
- Architecture
- Argentineans
- Aristocratic
- Aristotelian
- Arithmetical
- Arraignments
- Arrangements
- Articulating
- Articulation
- Artificially
- Artilleryman
- Artillerymen
- Artistically
- Ascertaining
- Asphyxiating
- Asphyxiation
- Assassinated
- Assassinates
- Assassinator
- Assignations
- Assimilating
- Assimilation
- Associations
- Astonishment
- Astoundingly
- Astrobiology
- Astrological
- Astronomical
- Astrophysics
- Asymmetrical
- Asymptomatic
- Athletically
- Atmospherics
- Attractively
- Attributable
- Augmentation
- Auspiciously
- Authenticate
- Authenticity
- Autographing
- Autonomously
- Availability
12 Letter Words Starting With B
- Bacchanalian
- Bachelorette
- Bachelorhood
- Backbenchers
- Backbreaking
- Backlighting
- Backpedaling
- Backslapping
- Backstabbing
- Backstopping
- Backtracking
- Backwardness
- Bacteriology
- Bandersnatch
- Bankruptcies
- Bantamweight
- Barbiturates
- Barnstorming
- Basilosaurus
- Battlefields
- Battleground
- Beachcombers
- Beachcombing
- Bedfordshire
- Begrudgingly
- Behaviorally
- Behaviorists
- Belligerence
- Belligerents
- Bellybuttons
- Benefactress
- Benevolently
- Bespectacled
- Bewilderment
- Bibliography
- Bicentennial
- Billingsgate
- Billionaires
- Biochemistry
- Biographical
- Biologically
- Biomechanics
- Blabbermouth
- Blackballing
- Blackberries
- Blackcurrant
- Blacklisting
- Blackmailers
- Blackmailing
- Blatherskite
- Blindfolding
- Blockbusters
- Bloodletting
- Bloodstained
- Bloodstreams
- Bloodsuckers
- Bloodsucking
- Bloodthirsty
- Bodybuilders
- Bodybuilding
- Boilermakers
- Boisterously
- Bombardments
- Boutonnieres
- Brainwashing
- Breadwinners
- Breakfasting
- Breakthrough
- Breastplates
- Breaststroke
- Breathlessly
- Breathtaking
- Brilliantine
- Brinkmanship
- Broadcasters
- Broadcasting
- Bronchoscopy
- Bronchospasm
- Brontosaurus
- Buccaneering
- Bullfighters
- Bullfighting
- Bullshitting
- Bureaucratic
- Burglarizing
- Bushwhackers
- Bushwhacking
- Businesslike
- Butterscotch
- Byelorussian
12 Letter Words Starting With C
- Calculations
- Californians
- Calisthenics
- Calligrapher
- Cancellation
- Candlesticks
- Cantankerous
- Capabilities
- Capitalistic
- Capitulation
- Carbohydrate
- Carcinogenic
- Cardiologist
- Carelessness
- Carpetbagger
- Carthaginian
- Cartographer
- Catastrophes
- Catastrophic
- Caterpillars
- Caterwauling
- Celebrations
- Centerpieces
- Certificates
- Chairmanship
- Chambermaids
- Championship
- Characterise
- Characterize
- Chauffeuring
- Chauvinistic
- Checkerboard
- Cheerfulness
- Cheerleaders
- Cheerleading
- Cheeseburger
- Chemotherapy
- Chesterfield
- Childbearing
- Childishness
- Chiropractic
- Chiropractor
- Choreography
- Christianity
- Churchwarden
- Circumcision
- Circumstance
- Circumvented
- Civilisation
- Civilization
- Clairvoyance
- Cobblestones
- Cockfighting
- Cohabitation
- Coincidences
- Coincidental
- Collaborated
- Collaborator
- Collectibles
- Collectively
- Colonisation
- Colonization
- Combinations
- Commandeered
- Commandments
- Commemorated
- Commemorates
- Commencement
- Commendation
- Commensurate
- Commentaries
- Commentators
- Commercially
- Commissariat
- Commissioned
- Commissioner
- Commonwealth
- Communicable
- Communicated
- Communicates
- Communicator
- Compartments
- Compensating
- Compensation
- Compensatory
- Competitions
- Complemented
- Completeness
- Complexities
- Complicating
- Complication
- Complimented
- Compositions
- Compressions
- Compromising
- Compulsively
- Computations
- Computerized
- Concentrated
- Concentrates
- Conceptually
- Conciliation
- Conclusively
- Concurrently
- Condemnation
- Condensation
- Conditioners
- Conditioning
- Condominiums
- Conductivity
- Confectioner
- Confederates
- Confessional
- Confidential
- Confirmation
- Confiscating
- Confiscation
- Congeniality
- Conglomerate
- Congratulate
- Congregating
- Congregation
- Connectivity
- Connoisseurs
- Connotations
- Conquistador
- Conscription
- Consecration
- Consequences
- Consequently
- Conservation
- Conservatism
- Conservative
- Conservatory
- Considerable
- Considerably
- Consistently
- Consolidated
- Conspiracies
- Conspirators
- Constabulary
- Constipation
- Constituency
- Constituents
- Constitution
- Constricting
- Constriction
- Constrictors
- Constructing
- Construction
- Constructive
- Consultation
- Consummation
- Contaminants
- Contaminated
- Contemplated
- Contemplates
- Contemporary
- Contemptible
- Contemptuous
- Continuation
- Continuously
- Contractions
- Contradicted
- Contraptions
- Contributing
- Contribution
- Contributors
- Controllable
- Convalescent
- Convalescing
- Conveniences
- Conveniently
- Conventional
- Conversation
- Convertibles
- Convincingly
- Cooperatives
- Coordinating
- Coordination
- Coordinators
- Cornerstones
- Corporations
- Correctional
- Corresponded
- Corroborated
- Corroborates
- Cosmological
- Cosmologists
- Cosmopolitan
- Councilwoman
- Counterfeits
- Counteroffer
- Counterparts
- Counterpoint
- Courageously
- Crisscrossed
- Cryptography
- Crystallized
- Czechoslovak
12 Letter Words Starting With D
- Deactivating
- Deactivation
- Debilitating
- Decapitating
- Decapitation
- Decelerating
- Deceleration
- Decisiveness
- Declarations
- Declassified
- Decommission
- Decompressed
- Decongestant
- Defibrillate
- Deficiencies
- Definitively
- Deformations
- Degenerating
- Degeneration
- Degenerative
- Dehumanizing
- Dehumidifier
- Deliberately
- Deliberating
- Deliberation
- Delicatessen
- Delightfully
- Demagnetized
- Demographics
- Demonstrable
- Demonstrably
- Demonstrated
- Demonstrates
- Demonstrator
- Demoralising
- Demoralizing
- Denomination
- Denominators
- Denouncement
- Denunciation
- Departmental
- Dependencies
- Depopulation
- Deportations
- Depreciating
- Depreciation
- Depressingly
- Depressurize
- Deprivations
- Deregulation
- Desalination
- Descriptions
- Desensitized
- Designations
- Desirability
- Destabilized
- Destinations
- Destructions
- Deteriorated
- Deteriorates
- Developments
- Diabolically
- Diamondbacks
- Dictatorship
- Dictionaries
- Diethylamide
- Differential
- Difficulties
- Directorship
- Disabilities
- Disadvantage
- Disagreeable
- Disagreement
- Disappearing
- Disappointed
- Disapproving
- Disassembled
- Disassociate
- Disastrously
- Disbelievers
- Disbelieving
- Disbursement
- Disciplinary
- Disciplining
- Discomfiture
- Disconcerted
- Disconnected
- Disconsolate
- Discontented
- Discontinued
- Discordantly
- Discotheques
- Discouraging
- Discourteous
- Discrediting
- Discriminate
- Disembarking
- Disemboweled
- Disenchanted
- Disgustingly
- Disheartened
- Dishonorable
- Dishonorably
- Dishonouring
- Disinfectant
- Disinfecting
- Disinfection
- Disingenuous
- Disinherited
- Disintegrate
- Dislocations
- Dismembering
- Disobedience
- Disorganised
- Disorganized
- Disorienting
- Dispensaries
- Dispensation
- Displacement
- Dispositions
- Dispossessed
- Disqualified
- Disqualifies
- Disregarding
- Disreputable
- Dissatisfied
- Disseminated
- Dissertation
- Dissociation
- Dissociative
- Distillation
- Distilleries
- Distinctions
- Distractions
- Distributing
- Distribution
- Distributors
- Disturbances
- Disturbingly
- Diversifying
- Diversionary
- Dodecahedron
- Domestically
- Domesticated
- Doppelganger
- Doubleheader
- Downloadable
- Dramatically
- Dreadnoughts
- Dysfunctions
12 Letter Words Starting With E
- Earthshaking
- Eavesdropped
- Eavesdropper
- Eccentricity
- Ecclesiastes
- Ecclesiastic
- Echolocation
- Ecologically
- Economically
- Ecstatically
- Edaphosaurus
- Editorialize
- Effeminately
- Effervescent
- Efficiencies
- Effortlessly
- Egyptologist
- Electrically
- Electricians
- Electrifying
- Electrocuted
- Electrocutes
- Electrolysis
- Electrolytes
- Electrolytic
- Electroscope
- Electroshock
- Eliminations
- Emancipating
- Emancipation
- Emasculating
- Emasculation
- Embarrassing
- Embellishing
- Embezzlement
- Embolization
- Embroideries
- Embroidering
- Emotionalism
- Emotionality
- Emphatically
- Emplacements
- Encapsulated
- Encapsulates
- Encephalitis
- Enchantments
- Encirclement
- Encompassing
- Encountering
- Encroachment
- Encumbrances
- Encyclopedia
- Encyclopedic
- Endangerment
- Endeavouring
- Endocarditis
- Endorsements
- Endoskeleton
- Endotracheal
- Englishwoman
- Enhancements
- Enlargements
- Enlightening
- Entanglement
- Enterprising
- Entertainers
- Entertaining
- Enthronement
- Enthusiastic
- Entomologist
- Entrenchment
- Entrepreneur
- Environments
- Epidemiology
- Episcopalian
- Epistemology
- Equalization
- Equivocation
- Erythromycin
- Establishing
- Estrangement
- Ethnographic
- Evangelicals
- Evidentially
- Eviscerating
- Evisceration
- Evolutionary
- Evolutionist
- Exacerbating
- Exaggerating
- Exaggeration
- Examinations
- Exasperating
- Exasperation
- Excellencies
- Exclamations
- Exclusionary
- Excruciating
- Executioners
- Exfiltration
- Exhaustively
- Exhilarating
- Exhilaration
- Expansionist
- Expectations
- Expenditures
- Experiencing
- Experiential
- Experimental
- Experimented
- Experimenter
- Explanations
- Exploitation
- Exploitative
- Explorations
- Expropriated
- Exsanguinate
- Exterminated
- Exterminator
- Extinguished
- Extinguisher
- Extinguishes
- Extortionate
- Extortionist
- Extramarital
- Extrapolated
- Extrasensory
- Extravagance
- Extravaganza
- Eyewitnesses
12 Letter Words Starting With F
- Fabrications
- Fabulousness
- Facilitating
- Facilitation
- Factionalism
- Fainthearted
- Faithfulness
- Familiarised
- Familiarized
- Fascinations
- Fastidiously
- Favorability
- Fearlessness
- Featherbrain
- Feebleminded
- Felicitating
- Felicitation
- Feminization
- Fenestration
- Fermentation
- Ferrocyanide
- Fibrillating
- Fibrillation
- Fictionalize
- Fictitiously
- Fiddlesticks
- Figuratively
- Filibustered
- Finalization
- Fingerprints
- Firecrackers
- Firefighters
- Firefighting
- Fireproofing
- Flagellating
- Flagellation
- Flamboyantly
- Flamethrower
- Flammability
- Flatteringly
- Fleetingness
- Flimflamming
- Flocculation
- Fluctuations
- Fluorescence
- Fluoridation
- Fluorocarbon
- Fluoroscoped
- Fluoroscopic
- Fluphenazine
- Folliculitis
- Footsoldiers
- Foraminifera
- Forbiddingly
- Forcefulness
- Foreclosures
- Forensically
- Foreordained
- Foreshadowed
- Forestalling
- Formaldehyde
- Formlessness
- Formulations
- Forthrightly
- Fortuitously
- Foundational
- Fountainhead
- Fractionally
- Frankenstein
- Frankfurters
- Frankincense
- Fraternising
- Fraternities
- Fraternizing
- Fraudulently
- Freakishness
- Freestanding
- Freethinkers
- Freethinking
- Freewheeling
- Frenetically
- Frictionless
- Friendliness
- Frontiersman
- Frontiersmen
- Frontispiece
- Fruitfulness
- Frustrations
- Functionally
- Fundamentals
12 Letter Words Starting With G
- Galactically
- Galactorrhea
- Gallbladders
- Gallivanting
- Galvanometer
- Gamesmanship
- Gasification
- Gastroplasty
- Gatecrashers
- Gemeinschaft
- Genealogical
- Genealogists
- Generalising
- Generalities
- Generalizing
- Generational
- Generosities
- Genuflecting
- Genuflection
- Geochemistry
- Geographical
- Geologically
- Geomagnetism
- Geophysicist
- Geopolitical
- Geostrategic
- Geriatrician
- Gesellschaft
- Ghostwriters
- Ghostwriting
- Ghostwritten
- Gigantically
- Glaciologist
- Gladiatorial
- Glassblowers
- Glassblowing
- Globetrotter
- Glockenspiel
- Gloriousness
- Glossophobia
- Glossopteris
- Glycoprotein
- Gobbledegook
- Gobbledygook
- Goddamnedest
- Goddaughters
- Gonadotropin
- Gooseberries
- Gorgeousness
- Gossipmonger
- Governmental
- Governorship
- Gracefulness
- Graciousness
- Gradualistic
- Granddaddies
- Grandfathers
- Grandmontine
- Grandmothers
- Grandparents
- Grandstander
- Graphologist
- Graphomaniac
- Grasshoppers
- Gratefulness
- Gratifyingly
- Gratuitously
- Gravediggers
- Greengrocers
- Greengrocery
- Greenskeeper
- Griddlecakes
- Grotesquerie
- Groundkeeper
- Groundlessly
- Guaranteeing
- Guardianship
- Guttersnipes
- Gynecologist
- Gynecomastia
12 Letter Words Starting With H
- Haberdashery
- Habitability
- Haemophiliac
- Haemorrhaged
- Haemorrhagic
- Haemorrhoids
- Hairdressers
- Hairdressing
- Hallucinated
- Hallucinates
- Hallucinogen
- Handicapping
- Handkerchief
- Handsomeness
- Happenstance
- Harbormaster
- Hardscrabble
- Harmoniously
- Hasenpfeffer
- Headmistress
- Headquarters
- Headshrinker
- Heartbreaker
- Heartrending
- Heartstrings
- Heartwarming
- Heavyweights
- Helplessness
- Hematologist
- Hemodialysis
- Hemophiliacs
- Hemorrhaging
- Hemorrhoidal
- Henceforward
- Hermetically
- Heterosexual
- Hierarchical
- Hieroglyphic
- Highlighting
- Hindquarters
- Hippopotamus
- Histological
- Historically
- Hohenzollern
- Homelessness
- Homesickness
- Homesteaders
- Honeymooners
- Honeymooning
- Hootenannies
- Hopelessness
- Horizontally
- Hornswoggled
- Horrendously
- Horribleness
- Horrifically
- Horrifyingly
- Horsemanship
- Horsewhipped
- Horticulture
- Hospitalized
- Housebreaker
- Householders
- Househusband
- Housekeepers
- Housekeeping
- Housesitting
- Housewarming
- Humanitarian
- Humiliations
- Hummingbirds
- Hydrocarbons
- Hydrochloric
- Hydrodynamic
- Hydrofluoric
- Hydrogenated
- Hydrographic
- Hydrological
- Hydrotherapy
- Hydrothermal
- Hygienically
- Hyperkalemia
- Hypertension
- Hypertensive
- Hyperthermia
- Hypertrophic
- Hypnotherapy
- Hypnotically
- Hypochlorite
- Hypochondria
- Hypocritical
- Hypoglycemia
- Hypoglycemic
- Hyponatremia
- Hypothalamic
- Hypothalamus
- Hypothesized
- Hypothetical
- Hysterectomy
- Hysterically
12 Letter Words Starting With I
- Identifiable
- Illegitimate
- Illuminating
- Illumination
- Illusionists
- Illustrating
- Illustration
- Imaginations
- Immaculately
- Immeasurable
- Immeasurably
- Immortalised
- Immortalized
- Immunization
- Impartiality
- Impenetrable
- Imperfection
- Imperialists
- Imperishable
- Impermanence
- Impersonated
- Impersonates
- Impersonator
- Impertinence
- Implantation
- Implementing
- Implications
- Impoverished
- Impregnating
- Impressively
- Imprisonment
- Improvements
- Inaccessible
- Inaccuracies
- Inadequacies
- Inadmissible
- Inarticulate
- Inaugurating
- Inauguration
- Inauspicious
- Incalculable
- Incandescent
- Incantations
- Incapacitate
- Incarcerated
- Incarnations
- Incendiaries
- Incidentally
- Incinerating
- Incineration
- Inclinations
- Incoherently
- Incomparable
- Incomparably
- Incompatible
- Incompetence
- Incompetents
- Inconclusive
- Inconsistent
- Inconsolable
- Incontinence
- Inconvenient
- Incorporated
- Incorporates
- Incorrigible
- Increasingly
- Incriminated
- Incriminates
- Indebtedness
- Indefensible
- Indefinitely
- Indentations
- Independence
- Independents
- Indianapolis
- Indifference
- Indigestible
- Indiscipline
- Indiscretion
- Indisputable
- Indistinctly
- Individually
- Indoctrinate
- Inefficiency
- Inequalities
- Inexperience
- Inexplicable
- Inexplicably
- Inextricably
- Infidelities
- Infiltrating
- Infiltration
- Infiltrators
- Inflammation
- Inflammatory
- Inflationary
- Infrequently
- Infringement
- Ingratiating
- Inhospitable
- Initializing
- Inoculations
- Inordinately
- Inscriptions
- Insecticides
- Insecurities
- Insemination
- Insinuations
- Inspectorate
- Inspirations
- Installation
- Installments
- Institutions
- Instructions
- Instrumental
- Insufferable
- Insufficient
- Insurrection
- Intellectual
- Intelligence
- Intelligible
- Intensifying
- Interactions
- Intercepting
- Interception
- Interceptors
- Intercession
- Interdiction
- Interference
- Interlocking
- Intermediary
- Intermediate
- Interminable
- Intermingled
- Intermission
- Intermittent
- Internalized
- Interpreters
- Interpreting
- Interpretive
- Interrogated
- Interrogates
- Interrogator
- Interrupting
- Interruption
- Intersecting
- Intersection
- Interspecies
- Interspersed
- Interstellar
- Interstitial
- Intervention
- Interviewing
- Intimidating
- Intimidation
- Intoxicating
- Intoxication
- Intracranial
- Intransigent
- Introduction
- Introductory
- Invertebrate
- Investigated
- Investigates
- Investigator
- Invigorating
- Invisibility
- Invitational
- Invulnerable
- Irrationally
- Irredeemable
- Irregardless
- Irregularity
- Irresistible
- Irresistibly
- Irrespective
- Irreversible
- Irreversibly
- Irritability
- Isolationist
12 Letter Words Starting With J
English has only 68 twelve letter words beginning with J. Jurisdiction and journalistic are the two in general use.
- Jacksonville
- Japanization
- Jeffersonian
- Jeopardising
- Jeopardizing
- Jesuitically
- Jitterbugged
- Jitterbugger
- Johannesburg
- Journalistic
- Jurisconsult
- Jurisdiction
- Juristically
- Justiciaries
- Juvenescence
12 Letter Words Starting With K
K produces roughly 104 words at this length. Kindergarten and kaleidoscope are the two in common use.
- Kaleidoscope
- Katzenjammer
- Keynesianism
- Kindergarten
- Kirschwasser
- Kitchenettes
- Kleptomaniac
- Klipspringer
- Kneecappings
- Knowledgable
- Knowledgably
- Knucklebones
- Knuckleheads
- Kommandatura
- Konstantinos
12 Letter Words Starting With L
- Laboratories
- Laboursaving
- Labyrinthian
- Labyrinthine
- Lallygagging
- Lamentations
- Landholdings
- Languorously
- Laparotomies
- Laryngectomy
- Laryngoscope
- Laryngoscopy
- Laryngospasm
- Lasciviously
- Laughability
- Laundrywoman
- Leapfrogging
- Leaseholders
- Leathernecks
- Lechuguillas
- Legalization
- Legionnaires
- Legislatures
- Legitimately
- Legitimation
- Legitimising
- Legitimizing
- Leukocytosis
- Lexicography
- Liberalising
- Liberalistic
- Liberalizing
- Libertarians
- Lifelessness
- Lighthearted
- Lightweights
- Lilliputians
- Lincolnesque
- Liquefaction
- Liquefactive
- Liquidations
- Listenership
- Listlessness
- Lithographer
- Lithographic
- Liverpudlian
- Loansharking
- Lobotomizing
- Localisation
- Localization
- Locksmithery
- Locksmithing
- Loganberries
- Logistically
- Lollapalooza
- Lollygagging
- Lonesomeness
- Longitudinal
- Longshoreman
- Longshoremen
- Longstanding
- Loudspeakers
- Lovelessness
- Lovesickness
- Luminescence
- Luminiferous
- Luncheonette
- Lusciousness
- Lycanthropia
- Lycanthropic
12 Letter Words Starting With M
- Macclesfield
- Machinations
- Mademoiselle
- Magnetically
- Magnetometer
- Magnificence
- Maidservants
- Majestically
- Malformation
- Malfunctions
- Malnourished
- Malnutrition
- Maltreatment
- Maneuverable
- Manipulating
- Manipulation
- Manipulative
- Manipulators
- Manslaughter
- Manufactured
- Manufacturer
- Manufactures
- Marketplaces
- Marksmanship
- Marriageable
- Marseillaise
- Marshmallows
- Marshmallowy
- Marvellously
- Masquerading
- Mastectomies
- Masterminded
- Masterpieces
- Masterstroke
- Masturbating
- Masturbation
- Materialised
- Materialists
- Materialized
- Materializes
- Mathematical
- Matriculated
- Meaningfully
- Measurements
- Mechanically
- Mediocrities
- Megalomaniac
- Melodramatic
- Memorialized
- Memorization
- Menstruating
- Menstruation
- Mesopotamian
- Mesothelioma
- Metabolizing
- Metallurgist
- Metalworkers
- Metalworking
- Metamorphose
- Metaphorical
- Metaphysical
- Metastasized
- Methacrylate
- Methodically
- Methotrexate
- Meticulously
- Metropolises
- Metropolitan
- Michelangelo
- Microbiology
- Microcircuit
- Microclimate
- Microseconds
- Microsurgery
- Microsystems
- Middleweight
- Militaristic
- Millionaires
- Milliseconds
- Mimeographed
- Mineralogist
- Minesweepers
- Miniaturized
- Minimization
- Miraculously
- Misadventure
- Misalignment
- Misanthropic
- Misbehaviour
- Miscalculate
- Miscarriages
- Misconstrued
- Misdemeanors
- Misdemeanour
- Misdiagnosed
- Misdiagnosis
- Misdirection
- Misericordia
- Misfortunate
- Misinterpret
- Misjudgement
- Misogynistic
- Mispronounce
- Misrepresent
- Missionaries
- Misspellings
- Mistreatment
- Mitochondria
- Mobilisation
- Mobilization
- Mockingbirds
- Modification
- Moisturizers
- Moisturizing
- Moneylenders
- Monkeyshines
- Monofilament
- Monopolising
- Monopolistic
- Monopolizing
- Monosyllabic
- Monosyllable
- Monotheistic
- Monotonously
- Monumentally
- Moonlighting
- Motivational
- Motorboating
- Motorcycling
- Motorcyclist
- Mountaineers
- Mountainside
- Mountaintops
- Mulligatawny
- Multicolored
- Multifaceted
- Multifarious
- Multilayered
- Multilingual
- Multimillion
- Multiplicity
- Multipurpose
- Multitasking
- Multivariate
- Multivitamin
- Municipality
- Musicianship
- Musicologist
- Mysteriously
- Mythological
12 Letter Words Starting With N
- Narcissistic
- Nationalists
- Nationalized
- Naturalistic
- Naturopathic
- Nauseatingly
- Nauseousness
- Navigational
- Neanderthals
- Necessitated
- Necessitates
- Neckerchiefs
- Necromancers
- Necrophagous
- Necrophiliac
- Needlepoints
- Negotiations
- Neighborhood
- Neighbouring
- Neoclassical
- Nephrologist
- Neurasthenia
- Neurasthenic
- Neuroanatomy
- Neurobiology
- Neurochemist
- Neurogenesis
- Neurographic
- Neurological
- Neurologists
- Neuroscience
- Neurosurgeon
- Neurosurgery
- Neurotically
- Neutralizing
- Nevertheless
- Newfoundland
- Newsmagazine
- Newspaperman
- Newspapermen
- Nickelodeons
- Nightclothes
- Nightcrawler
- Nightingales
- Nightwalkers
- Nimbostratus
- Nitromethane
- Nomenclature
- Nonaddictive
- Nonalcoholic
- Nonbelievers
- Noncancerous
- Nonchalantly
- Noncombatant
- Noncombative
- Noncommittal
- Noncompliant
- Nonconductor
- Noncustodial
- Nonemotional
- Nonessential
- Nonexclusive
- Nonexistence
- Nonflammable
- Nonintuitive
- Nonpolitical
- Nonpolluting
- Nonreligious
- Nonrenewable
- Nonsectarian
- Nonviolently
- Noradrenalin
- Normotensive
- Northeastern
- Northernmost
- Northumbrian
- Northwestern
- Notabilities
- Notification
- Nourishments
- Novelisation
- Novelization
- Numerologist
- Nutritionist
- Nymphomaniac
12 Letter Words Starting With O
- Objectifying
- Obliterating
- Obliteration
- Obscurantism
- Obscurantist
- Observations
- Obsolescence
- Obstetrician
- Obstreperous
- Obstructions
- Occasionally
- Occupational
- Oceanography
- Octogenarian
- Odontologist
- Omnipresence
- Onomatopoeia
- Oophorectomy
- Operatically
- Opportunists
- Oppositional
- Oppressively
- Optimization
- Optometrists
- Orchestrated
- Orchestrates
- Orchestrator
- Ordinariness
- Organisation
- Organization
- Orientations
- Orienteering
- Ornithomimus
- Orthodontics
- Orthodontist
- Orthographic
- Orthopaedics
- Orthopaedist
- Orthopedists
- Oscillations
- Oscillograph
- Oscilloscope
- Ossification
- Ostentatious
- Osteogenesis
- Osteological
- Osteoporosis
- Osteosarcoma
- Otherworldly
- Outbuildings
- Outcroppings
- Outdistanced
- Outmanoeuvre
- Outnumbering
- Outperformed
- Outrageously
- Outstandings
- Outstretched
- Outstripping
- Overachiever
- Overburdened
- Overcautious
- Overcharging
- Overcrowding
- Overdramatic
- Overeducated
- Overestimate
- Overexerting
- Overexertion
- Overexposure
- Overextended
- Overgenerous
- Overindulged
- Overinflated
- Overlordship
- Overnighters
- Overpopulate
- Overpowering
- Overpressure
- Overproduced
- Overreaching
- Overreacting
- Overreaction
- Overshadowed
- Overshooting
- Oversimplify
- Oversleeping
- Overspending
- Overstepping
- Overstrained
- Overstressed
- Overthrowing
- Overtraining
- Overwhelming
- Oxyacetylene
12 Letter Words Starting With P
P starts more twelve letter words than any other letter, over 3,400, mostly through the prefixes pre-, pro-, poly- and photo-.
- Pacification
- Paintbrushes
- Paleontology
- Palestinians
- Palpitations
- Pancreatitis
- Paperweights
- Parachutists
- Paramilitary
- Paraphrasing
- Paratroopers
- Parishioners
- Parsimonious
- Participants
- Participated
- Participates
- Particularly
- Partnerships
- Passionately
- Pathetically
- Pathological
- Pathologists
- Peacefulness
- Peacekeepers
- Peacekeeping
- Peccadilloes
- Pediatrician
- Penitentiary
- Pennsylvania
- Perforations
- Performances
- Pericarditis
- Periodically
- Periodontist
- Peripherally
- Permanganate
- Permutations
- Perpetrating
- Perpetrators
- Perpetuating
- Perpetuation
- Persecutions
- Perseverance
- Persistently
- Personalized
- Perspectives
- Perspicacity
- Perspiration
- Persuasively
- Perturbation
- Pestilential
- Pharmacology
- Phenomenally
- Philadelphia
- Philandering
- Philanthropy
- Philharmonic
- Philosophers
- Philosophies
- Philosophize
- Phonetically
- Photocopying
- Photographed
- Photographer
- Photographic
- Physiologist
- Piggybacking
- Pigmentation
- Plagiarizing
- Plainclothes
- Platonically
- Plausibility
- Pleasantries
- Pneumothorax
- Polarization
- Poltergeists
- Polyethylene
- Polyurethane
- Pomegranates
- Pornographer
- Pornographic
- Postgraduate
- Posthumously
- Posthypnotic
- Postmistress
- Postponement
- Potentiality
- Practicality
- Practitioner
- Praiseworthy
- Precariously
- Preciousness
- Precipitated
- Precipitates
- Precognition
- Preconceived
- Precondition
- Predecessors
- Predicaments
- Predilection
- Preemptively
- Preferential
- Premeditated
- Premenstrual
- Premonitions
- Preoperative
- Preparations
- Preparedness
- Prepositions
- Preposterous
- Prepubescent
- Prerequisite
- Prerogatives
- Presbyterian
- Preschoolers
- Prescription
- Presentation
- Presentiment
- Preservation
- Preservative
- Presidential
- Pressurizing
- Presumptions
- Presumptuous
- Preventative
- Principality
- Prizefighter
- Prizewinning
- Probationary
- Probationers
- Processional
- Proclamation
- Proclivities
- Proctologist
- Prodigiously
- Productively
- Productivity
- Professional
- Professorial
- Profiteering
- Progesterone
- Programmable
- Progressions
- Progressives
- Prohibitions
- Proletarians
- Prolongation
- Proofreading
- Propagandist
- Prophylactic
- Proportional
- Proportioned
- Propositions
- Proprietress
- Prosecutions
- Prostituting
- Prostitution
- Protagonists
- Protectorate
- Prototypical
- Protuberance
- Providential
- Provisioning
- Provocateurs
- Provocations
- Psychedelics
- Psychiatrist
- Psychoactive
- Psychologist
- Psychopathic
- Psychosexual
- Psychotropic
- Pterodactyls
- Publications
- Pumpernickel
- Purification
- Purposefully
- Pussyfooting
- Putrefaction
- Pyrotechnics
12 Letter Words Starting With Q
Every twelve letter Q word has a U straight after it. The quadr- and quinqu- number prefixes produce most of the 126 that exist.
- Quadrangular
- Quadraphonic
- Quadrillions
- Quadriplegia
- Quadriplegic
- Quantifiable
- Quantitative
- Quantization
- Quarantining
- Quarterbacks
- Quarterfinal
- Quarterstaff
- Quattrocento
- Questionable
- Questionably
- Questionings
- Quetzalcoatl
- Quinquennium
- Quintessence
- Quintillions
12 Letter Words Starting With R
- Racketeering
- Radiographer
- Radioisotope
- Radiological
- Radiologists
- Radiotherapy
- Rambunctious
- Rapscallions
- Ratification
- Rationalized
- Rattlesnakes
- Reacquainted
- Reactivating
- Reactivation
- Readjustment
- Realizations
- Reallocation
- Reappearance
- Reassembling
- Reassessment
- Reassignment
- Reassurances
- Reassuringly
- Reattachment
- Recalcitrant
- Recalculated
- Recalibrated
- Recapitulate
- Receivership
- Receptionist
- Rechargeable
- Rechristened
- Reciprocated
- Recklessness
- Reclassified
- Recognisable
- Recognizable
- Recognizance
- Recollecting
- Recollection
- Recommending
- Recommitment
- Reconfigured
- Reconnecting
- Reconnection
- Reconsidered
- Reconstitute
- Reconstructs
- Recreational
- Recuperating
- Recuperation
- Recuperative
- Redecorating
- Redecoration
- Redeployment
- Redeveloping
- Rediscovered
- Redistribute
- Redundancies
- Reenactments
- Reevaluating
- Reevaluation
- Refreshingly
- Refreshments
- Refrigerated
- Refrigerator
- Refurbishing
- Regenerating
- Regeneration
- Regenerative
- Registration
- Regurgitated
- Rehabilitate
- Reincarnated
- Reinitialize
- Reintegrated
- Reintroduced
- Reinvestment
- Reinvigorate
- Rejuvenating
- Rejuvenation
- Relationship
- Relativistic
- Relentlessly
- Relinquished
- Relinquishes
- Remembrances
- Reminiscence
- Remuneration
- Rendezvoused
- Renegotiated
- Renunciation
- Reoccurrence
- Reorganising
- Reorganizing
- Repatriation
- Repercussion
- Repetitively
- Replacements
- Replenishing
- Repopulating
- Repopulation
- Repositioned
- Repositories
- Repossessing
- Repossession
- Representing
- Reprimanding
- Reprocessing
- Reproducible
- Reproduction
- Reproductive
- Reprogrammed
- Requirements
- Requisitions
- Rescheduling
- Resemblances
- Resequencing
- Reservations
- Resettlement
- Resignations
- Resoundingly
- Respectfully
- Respectively
- Respirations
- Restaurateur
- Restlessness
- Restorations
- Restrictions
- Restructured
- Resurrecting
- Resurrection
- Resuscitated
- Resuscitator
- Retaliations
- Retrofitting
- Reverberated
- Reverberates
- Revisionists
- Revitalizing
- Rhetorically
- Rhinoceroses
- Rhododendron
- Rhythmically
- Ridiculously
- Risorgimento
- Romantically
- Romanticized
- Roughhousing
- Ruthlessness
12 Letter Words Starting With S
- Sacrilegious
- Sadistically
- Safecracking
- Safeguarding
- Salesmanship
- Salutatorian
- Sandblasting
- Sarsaparilla
- Saskatchewan
- Satisfaction
- Satisfactory
- Scandinavian
- Scapegoating
- Scatological
- Scatterbrain
- Scheherazade
- Scholarships
- Schoolmaster
- Screenwriter
- Screwdrivers
- Scriptwriter
- Scrupulously
- Scrutinizing
- Sculpturally
- Seamstresses
- Searchlights
- Secessionist
- Secobarbital
- Sectarianism
- Segmentation
- Seismographs
- Seismologist
- Selflessness
- Semicircular
- Separateness
- Sequentially
- Sequestering
- Shapeshifter
- Sharecropper
- Shareholders
- Sharpshooter
- Shatterproof
- Shipbuilders
- Shipbuilding
- Shortchanged
- Shortcomings
- Shortsighted
- Shuffleboard
- Sidestepping
- Significance
- Similarities
- Simpleminded
- Simultaneous
- Skateboarder
- Skullduggery
- Skyrocketing
- Slaughtering
- Sledgehammer
- Sleepwalkers
- Sleepwalking
- Sluggishness
- Snaggletooth
- Snowmobiling
- Sociological
- Sociologists
- Solicitation
- Somnambulism
- Somnambulist
- Sophisticate
- Soundproofed
- Southeastern
- Southernmost
- Southwestern
- Speakerphone
- Spearheading
- Specialising
- Specialities
- Specializing
- Specifically
- Spectrograph
- Spectrometer
- Spectrometry
- Spectroscope
- Spectroscopy
- Speculations
- Speechifying
- Spellbinding
- Spidermonkey
- Spinsterhood
- Spiritualism
- Spiritualist
- Spirituality
- Spokesperson
- Sponsorships
- Sporadically
- Sportscaster
- Sportswriter
- Spreadsheets
- Stagecoaches
- Staggeringly
- Standardised
- Standardized
- Statistician
- Steeplechase
- Stenographer
- Stepbrothers
- Stepchildren
- Stepdaughter
- Stereophonic
- Stereoscopic
- Stereotyping
- Stethoscopes
- Stewardesses
- Stipulations
- Stockbrokers
- Stockholders
- Stomachaches
- Stonewalling
- Storekeepers
- Storytellers
- Storytelling
- Stradivarius
- Straightaway
- Straightened
- Straightener
- Straitjacket
- Stranglehold
- Strangulated
- Stratosphere
- Strawberries
- Streamlining
- Streetwalker
- Strengthened
- Streptomycin
- Structurally
- Stubbornness
- Stupendously
- Subarachnoid
- Subcommander
- Subcommittee
- Subconscious
- Subcontinent
- Subcutaneous
- Subdivisions
- Subjectively
- Subjectivity
- Subliminally
- Submersibles
- Subordinated
- Subordinates
- Subscription
- Subsequently
- Subservience
- Subsidiaries
- Substantiate
- Substituting
- Substitution
- Substructure
- Subterranean
- Suburbanites
- Successfully
- Successively
- Sufficiently
- Suffragettes
- Sugarcoating
- Suggestively
- Supercharged
- Supercharger
- Supercilious
- Superhighway
- Superimposed
- Superlatives
- Supermarkets
- Supernatural
- Superpowered
- Superstition
- Supplemental
- Supplemented
- Supplication
- Suppositions
- Suppressants
- Supraorbital
- Supremacists
- Surprisingly
- Surrealistic
- Surrendering
- Surroundings
- Surveillance
- Suspiciously
- Swashbuckler
- Switchblades
- Switchboards
- Symbolically
- Sympathizers
- Sympathizing
- Synchronised
- Synchronized
- Synchronizer
- Synthesizers
- Synthesizing
12 Letter Words Starting With T
- Tangentially
- Taramasalata
- Taxidermists
- Teaspoonfuls
- Technicality
- Technocratic
- Technologies
- Technologist
- Teenyboppers
- Telegraphing
- Telegraphist
- Teleprompter
- Telharmonium
- Temperaments
- Temperatures
- Tenochtitlan
- Terminations
- Terrestrials
- Terribleness
- Terrifically
- Terrifyingly
- Tessellation
- Testamentary
- Testimonials
- Testosterone
- Tetracycline
- Tetrodotoxin
- Tezcatlipoca
- Thankfulness
- Thanksgiving
- Theatergoers
- Theatrically
- Thematically
- Theophylline
- Theoretician
- Theosophical
- Therapeutics
- Therethrough
- Thermocouple
- Thermometers
- Thermosphere
- Thermostatic
- Thoracostomy
- Thoroughbred
- Thoroughfare
- Thoroughness
- Thoughtfully
- Thousandfold
- Thunderation
- Thunderbolts
- Thunderclaps
- Thundercloud
- Thunderheads
- Thunderously
- Thunderstick
- Thunderstorm
- Timelessness
- Titanosaurus
- Tobacconists
- Togetherness
- Toothbrushes
- Totalitarian
- Toxicologist
- Tracheostomy
- Tradespeople
- Trailblazers
- Trailblazing
- Trailbreaker
- Trajectories
- Trampolining
- Tranquilized
- Tranquilizer
- Tranquillise
- Tranquillity
- Transactions
- Transceivers
- Transcendent
- Transcending
- Transcribing
- Transduction
- Transferable
- Transference
- Transferring
- Transfigured
- Transfigures
- Transformers
- Transforming
- Transfusions
- Transgressed
- Transgresses
- Transgressor
- Transitional
- Transitioned
- Translations
- Translucency
- Transmission
- Transmitters
- Transmitting
- Transmogrify
- Transoceanic
- Transorbital
- Transpacific
- Transparency
- Transplanted
- Transponders
- Transporters
- Transporting
- Transsexuals
- Transversely
- Transvestism
- Transvestite
- Traumatizing
- Traumatology
- Tremendously
- Triangulated
- Triangulates
- Tribespeople
- Tribulations
- Triglyceride
- Trigonometry
- Triphosphate
- Triumphantly
- Trivialities
- Trivializing
- Troublemaker
- Troubleshoot
- Truthfulness
- Tuberculosis
- Turbocharger
- Tyrannosaurs
12 Letter Words Starting With U
- Unacceptable
- Unaccustomed
- Unachievable
- Unacquainted
- Unaffiliated
- Unaffordable
- Unanswerable
- Unapologetic
- Unappetizing
- Unassailable
- Unattainable
- Unattractive
- Unauthorised
- Unauthorized
- Unbelievable
- Unbelievably
- Unbreathable
- Unchallenged
- Unchangeable
- Unchaperoned
- Uncharitable
- Unclassified
- Uncontrolled
- Unconvincing
- Uncultivated
- Undefeatable
- Undemocratic
- Undependable
- Underclothes
- Undercoating
- Undercurrent
- Undercutting
- Underdressed
- Undergarment
- Underpinning
- Underpowered
- Underselling
- Undersheriff
- Understaffed
- Understudied
- Understudies
- Undertakings
- Underwriters
- Underwriting
- Underwritten
- Undetectable
- Undetermined
- Undiminished
- Undiscovered
- Undocumented
- Unemployable
- Unemployment
- Unencumbered
- Unexpectedly
- Unfathomable
- Unfavourable
- Unfertilized
- Unflattering
- Unforgivable
- Unforgivably
- Unfortunates
- Unfulfilling
- Ungovernable
- Unidentified
- Unilaterally
- Unimaginable
- Unimaginably
- Unimpressive
- Uninterested
- Universality
- Universities
- Unmanageable
- Unmeasurable
- Unmercifully
- Unmistakable
- Unmistakably
- Unnoticeable
- Unobstructed
- Unobtainable
- Unofficially
- Unparalleled
- Unpardonable
- Unpleasantly
- Unpopularity
- Unprejudiced
- Unprincipled
- Unproductive
- Unprofitable
- Unquenchable
- Unquestioned
- Unreasonable
- Unreasonably
- Unrecognized
- Unreconciled
- Unregistered
- Unremarkable
- Unrepeatable
- Unreservedly
- Unresponsive
- Unrestrained
- Unrestricted
- Unsanctified
- Unsanctioned
- Unsatisfying
- Unscientific
- Unscrupulous
- Unseasonable
- Unseasonably
- Unstructured
- Unsuccessful
- Unsupervised
- Unsurprising
- Unsuspecting
- Unthinkingly
- Untouchables
- Untranslated
- Unverifiable
- Unworthiness
- Uproariously
- Urbanization
12 Letter Words Starting With V
- Vacationists
- Vacationland
- Vaccinations
- Vacillations
- Vaginoplasty
- Vainglorious
- Valenciennes
- Valorization
- Vaporization
- Vascularized
- Vasectomised
- Vasectomized
- Vasodilation
- Vaudevillian
- Vegetational
- Venerability
- Vengefulness
- Venipuncture
- Venomization
- Ventromedial
- Verification
- Vermiculated
- Veterinarian
- Veterinaries
- Vibraphonist
- Vibromassage
- Vicissitudes
- Victoriously
- Vigorousness
- Vilification
- Villainesses
- Villainously
- Vinaigrettes
- Vindications
- Vindictively
- Vinification
- Violoncellos
- Virtuosities
- Virtuousness
- Visceromotor
- Visibilities
- Vitalization
- Vitaminizing
- Vitriolizing
- Vituperating
- Vituperation
- Vituperative
- Vocabularies
- Vocalisation
- Vocalization
- Vocationally
- Vociferating
- Vociferously
- Volatilities
- Volcanically
- Voluminously
- Volunteering
- Volunteerism
- Voluptuaries
- Voluptuously
12 Letter Words Starting With W
- Wainscotting
- Wallpapering
- Warehouseman
- Warehousemen
- Warmongering
- Washingtonia
- Wastebaskets
- Wastefulness
- Watchdogging
- Watchfulness
- Watercourses
- Waterlogging
- Watermanship
- Waterproofed
- Weatherboard
- Weathermaker
- Weatherproof
- Weathertight
- Weightlessly
- Weightlifter
- Weisenheimer
- Wellingtonia
- Welterweight
- Westernising
- Westernizing
- Westinghouse
- Wheelbarrows
- Wheelwrights
- Whencesoever
- Wherethrough
- Whimsicality
- Whippoorwill
- Whitewashing
- Wholehearted
- Wicketkeeper
- Wildernesses
- Williamsonia
- Winterbourne
- Wintergreens
- Wisecrackers
- Wisecracking
- Withholdings
- Withstanding
- Wonderstruck
- Wondrousness
- Woodcarvings
- Woodshedding
- Wordlessness
- Workingwomen
- Workstations
- Worshipfully
- Wretchedness
- Wristwatches
- Wrongfulness
- Wunderkinder
12 Letter Words Starting With X
Only 39 English words start with X at twelve letters, nearly all built on the Greek roots xantho- (yellow), xero- (dry) and xylo- (wood).
- Xanthochroid
- Xanthomatous
- Xanthopterin
- Xenoparasite
- Xerophthalmy
- Xeroprinting
- Xiphisternum
- Xylophonists
12 Letter Words Starting With Y
Y is the scarcest starting letter at this length. English has just 18, and only youthfulness and yellowhammer are in general use.
- Yellowhammer
- Yellowshanks
- Yellowthroat
- Yieldingness
- Yorkshireman
- Younghearted
- Youthfulness
- Yugoslavians
12 Letter Words Starting With Z
Z produces 63 words at twelve letters, most built on zoo- (animal) or zygo- (paired).
- Zincographer
- Zoochemistry
- Zoogeography
- Zoographical
- Zoologically
- Zoroastrians
- Zygomorphous
- Zymotechnics
Twelve Letter Words With Meanings for Everyday Writing
- Relationship: the connection between two people or groups.
- Conversation: a spoken exchange between people.
- Neighborhood: the area around your home and the people in it.
- Unbelievable: too extreme to believe.
- Disappointed: let down by an outcome.
- Embarrassing: causing self-conscious discomfort.
- Headquarters: the central office an organisation operates from.
- Instructions: steps that explain how to do something.
- Fingerprints: the ridge patterns on your fingertips.
- Thanksgiving: the autumn holiday in the United States and Canada.
- Announcement: a public statement that makes news official.
- Photographer: a person who takes photographs.
- Arrangements: plans made in advance, or how objects are positioned.
- Accidentally: without intending to.
- Presentation: a talk given to an audience.
- Accomplished: highly skilled through practice.
- Championship: the contest that decides a champion.
- Congratulate: to tell someone you are pleased about their success.
- Deliberately: on purpose.
- Occasionally: now and then rather than regularly.
- Expectations: what you believe will happen.
- Nevertheless: in spite of what came before.
- Overwhelming: too intense to handle.
- Refrigerator: the appliance that keeps food cold.
- Acquaintance: someone you know slightly.
- Successfully: achieving the intended result.
- Grandparents: the parents of your parents.
- Surprisingly: contrary to what you would predict.
- Handkerchief: a cloth square for wiping the face.
- Breakthrough: a sudden advance past an obstacle.
- Considerable: large enough to notice.
- Reservations: bookings in your name, or private doubts.
- Temperatures: measurements of heat and cold.
- Kindergarten: the first school year for young children.
- Preparations: work done in advance of an event.
- Appointments: arranged times to meet.
- Enthusiastic: eager and openly interested.
- Circumstance: a condition that shapes what happens.
- Surroundings: everything in the space around you.
- Troublemaker: a person who deliberately causes conflict.
- Professional: relating to paid expert work.
- Intelligence: the ability to reason, and gathered information about a threat.
- Commissioner: an official heading a commission or a league.
- Construction: the act of building.
- Surveillance: close watch kept on a person or place.
- Consequences: the results of an action.
- Organization: a structured body of people.
- Specifically: precisely, naming the exact case.
- Civilization: an advanced society with cities and government.
- Psychiatrist: a doctor who treats mental illness.
- Independence: freedom from another’s control.
- Transmission: the sending of a signal, or a vehicle gearbox.
- Prescription: a doctor’s written order for medicine.
- Confidential: private between named parties.
- Satisfaction: the sense that a standard has been met.
- Registration: entering a name on an official record.
- Constitution: the founding rules of a state.
- Confirmation: proof that something is settled.
- Intellectual: relating to reasoning and study.
- Presidential: relating to a president.
- Conservative: cautious about change, or a low estimate.
- Psychologist: a specialist in behaviour and the mind.
- Jurisdiction: the legal authority a court has.
- Compensation: payment for loss, injury or work.
- Distribution: how something is shared out.
- Architecture: the design of buildings or of a system.
- Contribution: something given to a shared effort.
- Unacceptable: below the standard that will be tolerated.
- Appreciation: grateful recognition, or a rise in value.
- Introduction: the opening part of a text.
- Negotiations: talks held to reach agreement.
- Intervention: stepping in to change an outcome.
- Significance: the importance a fact has.
- Unemployment: the state of having no paid work.
- Imprisonment: confinement in prison as punishment.
- Irresistible: too forceful to be refused.
- Requirements: conditions that must be met.
- Availability: whether something is free to be used.
- Manufacturer: the company that makes a product.
- Productivity: output achieved for the effort spent.
Twelve Letter Words With No Repeating Letters
English has 243 twelve letter words that use twelve different letters with nothing repeated. Against more than 20,000 words at this length, that is one in eighty. Most of the 243 are technical. These forty are the recognisable ones.
- Unforgivable
- Considerably
- Housewarming
- Malnourished
- Thunderclaps
- Demographics
- Ambidextrous
- Unprofitable
- Bankruptcies
- Demonstrably
- Productively
- Exclusionary
- Metalworking
- Nightwalkers
- Customizable
- Questionably
- Stenographic
- Recognizably
- Bluestocking
- Packinghouse
- Upholstering
- Cryptomnesia
- Multipronged
- Unimprovable
- Unmethodical
- Sulphonamide
- Locksmithery
- Lexicography
- Exhaustingly
- Configurable
- Unhysterical
- Unhospitable
- Expurgations
- Dismountable
- Flourishment
- Hypnotizable
- Stylographic
- Unformidable
- Hydrosulfite
- Remodulating
Ambidextrous is the one to remember: twelve letters, twelve different ones, and a word with everyday use.
12 Letter Words With Double Letters
A doubled letter at this length almost always marks a join, where a prefix meets a root or a root meets a suffix. Ir- plus resistible gives the double R in irresistible. Ac- plus cident gives the double C in accidentally.
| Doubled letter | Words |
|---|---|
| BB | Abbreviation, stubbornness, blabbermouth, cobblestones, backstabbing, gobbledygook |
| CC | Accidentally, accomplished, occasionally, successfully, unacceptable, acceleration |
| DD | Middleweight, additionally, fiddlesticks, gallbladders, muddleheaded, underbidding |
| EE | Volunteering, housekeeping, cheeseburger, cheerleaders, disagreement, disagreeable |
| FF | Difficulties, affectionate, insufficient, sufficiently, indifference, differential |
| GG | Exaggerating, aggressively, staggeringly, piggybacking, gravediggers, carpetbagger |
| LL | Intelligence, surveillance, specifically, mademoiselle, intellectual, spellbinding |
| MM | Commissioner, commonwealth, commandments, recommending, communicator, inflammation |
| NN | Announcement, disconnected, annihilation, stubbornness, legionnaires, reconnecting |
| OO | Neighborhood, bloodthirsty, coordination, moonlighting, schoolmaster, toothbrushes |
| PP | Disappointed, disappearing, appreciation, appointments, applications, appendicitis |
| RR | Embarrassing, arrangements, interrupting, resurrection, strawberries, irresistible |
| SS | Professional, transmission, nevertheless, commissioned, assassinated, dispossessed |
| TT | Transmitting, bachelorette, unattractive, butterscotch, intermittent, subcommittee |
| ZZ | Embezzlement, bedazzlement, mizzentopmen |
Embarrassing has two doubles at once, an RR and an SS, which is why it is among the most misspelled words in English.
Highest Scoring 12 Letter Scrabble Words
A twelve letter word needs seven tiles from your rack plus five already on the board, so it occurs rarely. A play this long covers several premium squares at once. Each value is the raw tile total before any double or triple square.
| Word | Scrabble tile value |
|---|---|
| Katzenjammer | 36 |
| Embezzlement | 36 |
| Hypothesized | 33 |
| Crackerjacks | 33 |
| Sympathizing | 32 |
| Maximization | 32 |
| Jeopardizing | 32 |
| Extravaganza | 32 |
| Tranquilized | 31 |
| Philosophize | 31 |
| Prizefighter | 30 |
| Bushwhacking | 30 |
The theoretical maximum is higher. Quizzicality and quizzability both total 44 raw points, though neither occurs in real play. In Words With Friends, where tile values differ, razzmatazzes has the top twelve letter score at 51 points.
Shorter plays decide far more games. For the lengths that matter in practice, see the 5 letter words finder.
12 Letter Words Ending in TION
The -tion suffix turns a verb into the name of its process or result. Construct becomes construction, the act of building. Every word here follows that same rule.
- Conversation
- Construction
- Organization
- Civilization
- Presentation
- Prescription
- Satisfaction
- Registration
- Constitution
- Confirmation
- Jurisdiction
- Compensation
- Distribution
- Contribution
- Appreciation
- Introduction
- Intervention
- Resurrection
- Congregation
- Superstition
- Intersection
- Anticipation
- Manipulation
- Interruption
- Installation
- Consultation
- Exploitation
- Intoxication
- Conservation
- Acceleration
- Recollection
- Complication
- Preservation
- Reproduction
- Coordination
- Intimidation
- Inauguration
- Subscription
- Annihilation
- Exaggeration
- Proclamation
- Inflammation
- Cancellation
- Regeneration
- Notification
- Dissertation
- Continuation
- Modification
- Verification
- Commendation
- Purification
- Emancipation
- Infiltration
- Insurrection
- Solicitation
- Deliberation
- Illustration
- Malnutrition
- Illumination
- Accumulation
12 Letter Words Ending in NESS
The -ness suffix turns an adjective into the name of the quality itself. Stubborn becomes stubbornness, and the doubled N comes from the root already ending in one.
- Stubbornness
- Helplessness
- Carelessness
- Togetherness
- Restlessness
- Recklessness
- Hopelessness
- Faithfulness
- Homelessness
- Childishness
- Selflessness
- Ruthlessness
- Friendliness
- Preparedness
- Truthfulness
- Fearlessness
- Thoroughness
- Wretchedness
- Homesickness
- Graciousness
- Cheerfulness
- Youthfulness
- Peacefulness
- Gratefulness
- Completeness
- Decisiveness
- Indebtedness
- Handsomeness
- Thankfulness
- Unworthiness
- Timelessness
- Separateness
- Gorgeousness
- Preciousness
- Sluggishness
- Backwardness
- Pleasantness
- Impoliteness
- Covetousness
- Cohesiveness
- Creativeness
- Fruitfulness
- Spaciousness
- Gracefulness
- Cowardliness
For patterns built at the front of a word instead of the back, see the words that start with collection, and for endings at other lengths, the words that end with collection.
Positive Twelve Letter Words Worth Learning
These forty express warmth or approval, which makes them suited to a reference, a card or a note of praise.
- Accomplished: skilled through real practice.
- Appreciation: grateful recognition of what someone gave.
- Enlightening: giving understanding you did not have before.
- Harmoniously: in agreement, with no friction between the parts.
- Encouraging: giving someone the confidence to continue.
- Considerate: attentive to how your actions affect others.
- Trustworthy: reliable enough to be given responsibility.
- Resourceful: quick at finding a way through with what is available.
- Enthusiastic: eager and openly interested.
- Refreshingly: in a way that is a welcome change from the usual.
- Thankfulness: the settled state of being grateful.
- Graciousness: courtesy shown warmly rather than dutifully.
- Cheerfulness: a steady good humour others notice.
- Peacefulness: calm that holds under pressure.
- Gratefulness: ongoing awareness of what you were given.
- Friendliness: natural warmth towards people you have just met.
- Selflessness: placing another person’s need ahead of your own.
- Faithfulness: staying loyal to a person, promise or standard.
- Truthfulness: consistent honesty, including when it costs you.
- Creativeness: the habit of finding original solutions.
- Gracefulness: ease and control in movement or in handling a situation.
- Fruitfulness: producing results worth having.
- Preciousness: the quality of being genuinely valued.
- Gorgeousness: striking beauty, said warmly rather than formally.
- Decisiveness: settling a matter quickly and standing behind it.
- Completeness: nothing missing and nothing half done.
- Thoroughness: care taken to leave nothing out.
- Togetherness: the closeness within a family or team.
- Youthfulness: energy and openness at any age.
- Cohesiveness: the quality that keeps a group together.
- Spaciousness: roominess that makes a place feel calm.
- Pleasantness: mild, easy agreeableness in a person or a day.
- Breakthrough: the advance that finally clears an obstacle.
- Congratulate: to tell someone you are glad about their success.
- Considerably: by an amount large enough to matter.
- Productively: in a way that yields real output.
- Recognizably: clearly enough to be identified at once.
- Demonstrably: provably, in a way that can be shown.
- Instrumental: playing the decisive part in a good outcome.
- Compassionate: feeling for another person’s difficulty and acting on it.
For longer words, see the long words.
Easy 12 Letter Words
- Relationship
- Professional
- Construction
- Particularly
- Organization
- Conversation
- Intelligence
- Specifically
- Applications
- Distribution
- Requirements
- Independence
- Institutions
- Constitution
- Championship
- Introduction
- Neighborhood
- Consequences
- Respectively
- Successfully
- Expectations
- Architecture
- Disappointed
- Participants
- Occasionally
- Increasingly
- Instructions
- Headquarters
- Contribution
- Compensation
- Conservation
- Temperatures
- Registration
- Technologies
- Announcement
- Presentation
- Restrictions
- Improvements
- Difficulties
- Effortlessly
12 Letter Words for Kids
- Grandparents
- Kindergarten
- Thanksgiving
- Firefighters
- Storytelling
- Strawberries
- Thunderstorm
- Cheerleaders
- Snowboarding
- Cheeseburger
- Marshmallows
- Caterpillars
- Grasshoppers
- Hummingbirds
- Toothbrushes
- Candlesticks
- Hippopotamus
- Snowboarders
- Screwdrivers
- Nightingales
- Wheelbarrows
- Schoolhouses
- Mockingbirds
- Rhinoceroses
Random 12 Letter Words
- Astronomical
- Hypertension
- Indifference
- Emancipation
- Malnutrition
- Debilitating
- Exhilarating
- Emphatically
- Embezzlement
- Relinquished
- Orientations
- Oceanography
- Eccentricity
- Extravagance
- Foreshadowed
- Motorcyclist
- Crystallized
- Unobstructed
- Persecutions
- Proliferated
- Anaphylactic
- Transfusions
- Asymptomatic
- Postcolonial
Hard 12 Letter Words
- Antediluvian: An antediluvian opinion belongs to a world that ended long ago.
- Circumscribe: To circumscribe a role is to draw hard limits around it.
- Contumacious: Someone contumacious defies a court after the court has ruled.
- Defenestrate: To defenestrate someone is to throw them out of a window.
- Disputatious: Colleagues called disputatious argue over wording other people let pass.
- Incorrigible: Incorrigible behaviour survives every punishment and every warning.
- Intransigent: Negotiators call a side intransigent when it moves on nothing.
- Kakistocracy: Power under a kakistocracy goes to the worst and least able people.
- Megalomaniac: A megalomaniac acts on an inflated belief in their own power.
- Obstreperous: Obstreperous passengers shout down the crew and refuse to settle.
- Perspicacity: Sharp judgement about people and their motives marks out perspicacity.
- Recalcitrant: Recalcitrant students resist instruction from the first day on.
- Somnambulist: Someone acting as a somnambulist walks the house while still asleep.
- Supercilious: Supercilious staff answer questions with visible impatience.
- Vituperative: Vituperative criticism attacks the writer instead of the work.
Unique 12 Letter Words
- Effervescent: Bubbles rising through a drink make it effervescent, and a lively person takes the same word.
- Idiosyncrasy: An idiosyncrasy is a habit only one person has.
- Incandescent: A filament turns incandescent when heat alone drives it to give off light.
- Kaleidoscope: Turning a kaleidoscope rearranges coloured chips into a fresh symmetrical design.
- Labyrinthine: Labyrinthine corridors double back until a walker loses the way out.
- Luminescence: Light produced without heat, as in a firefly’s abdomen, is luminescence.
- Quintessence: The quintessence of a style is the purest form that style reaches.
- Transmogrify: To transmogrify something is to change it into a strange new shape.
- Bewilderment: Losing the thread entirely leaves a person in bewilderment.
- Resplendence: Brilliance bright enough to hold a whole room marks resplendence.
- Ephemerality: Anything lasting hours rather than years has ephemerality.
12 Letter Words With the Most Vowels
These 12 letter words hold six vowel letters or more, and Y never counts toward the total.
Seven and Eight Vowel Letters
- Onomatopoeia
- Inauguration
- Inequalities
- Aeronautical
- Equalization
- Unionization
- Inadequacies
- Inauspicious
- Reevaluation
- Equivocation
- Radioisotope
- Idealization
- Amelioration
- Diatomaceous
Six Vowel Letters
- Negotiations
- Availability
- Appreciation
- Capabilities
- Unbelievable
- Intermediate
- Associations
- Civilization
- Disabilities
- Notification
- Recreational
- Humanitarian
- Coordination
- Manipulation
- Exploitation
- Evolutionary
- Similarities
- Questionable
- Modification
- Unreasonable
- Anticipation
- Quantitative
- Acceleration
- Occupational
- Laboratories
- Continuation
The Twelve Letter Words People Spell Wrong Most
Three errors account for nearly every mistake at this length: a doubled consonant reduced to one, -ance written where -ence belongs, and -tion written where -sion belongs.
Embarassing โ Embarrassing โ
Occassionally โ Occasionally โ
Independance โ Independence โ
Transmition โ Transmission โ
Succesfully โ Successfully โ
Surveillence โ Surveillance โ
Refridgerator โ Refrigerator โ
Dissapointed โ Disappointed โ
Accidentaly โ Accidentally โ
Apreciation โ Appreciation โ
The rule behind all ten: when a prefix ends in the same letter the root begins with, both letters stay. Dis- plus appointed keeps both the S and the A, and doubles the P that is already in appoint.
FAQs
Q1. How many 12 letter words are there in English?
Standard word game dictionaries recognise roughly 20,300. Broader reference dictionaries that include technical and scientific vocabulary exceed 29,000.
Q2. What are the most common 12 letter words?
Relationship leads by a clear margin, followed by conversation, professional, neighborhood, unbelievable, intelligence and disappointed. About 130 twelve letter words count as everyday vocabulary.
Q3. What is the highest scoring 12 letter word?
Katzenjammer and embezzlement both total 36 raw tile points in Scrabble. Quizzicality totals 44 in theory. In Words With Friends, razzmatazzes has the highest twelve letter score at 51 points.
Q4. Are there 12 letter words with no repeating letters?
Yes, 243 of them. Ambidextrous, unforgivable, housewarming and malnourished are the four you will recognise immediately.
Q5. What are some positive 12 letter words?
Accomplished, appreciation, enlightening, harmoniously, thankfulness and breakthrough all express warmth and fit naturally into praise or thanks.
Q6. How do you remember long words like these?
Split them at the joins rather than by syllable. Find the root, then identify the prefix and suffix around it. Preservation is pre plus serv plus ation, and both the meaning and the spelling follow from the parts.
Q7. Can you play a 12 letter word in Scrabble?
Yes, though it needs all seven tiles from your rack plus five letters already on the board. Such a play covers several premium squares at once, which is why it decides games when it happens.
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