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Reading: Long Words That Start with B – Complete List with Meanings
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Englishan > Vocabulary > Words List > Long Words > Long Words That Start with B – Complete List with Meanings
Long Words

Long Words That Start with B – Complete List with Meanings

Aqsa Ali
By
Aqsa Ali
Last updated: January 12, 2026
7 Min Read
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If you love discovering big, expressive words, then you will enjoy this list of long words that start with B. These words not only look impressive but also help you sound clearer and more confident in your writing and conversations. In this article, you will find useful meanings for each word so you can understand how to use them in the right context. Let’s explore these interesting B-words and expand your vocabulary step by step.

In This Page
  • List of Long Words That Start with B
  • Common Long Words That Start with B
  • Eleven Letter Long Words Starting with B
  • Ten Letter Long Words Starting with B
  • Long Words Starting with Letter B And Ending in D
  • Long Words Starting with Letter B And Ending in S
  • Long Words Starting with Letter B And Ending in E
  • Long Words With Vowels After B
  • Rare Long Words That Start With A
  • FAQs About Long Words That Start With B

List of Long Words That Start with B

These long words that start with B are great for expressing ideas clearly and making your writing more interesting. We’ve put together a list of useful Long B-words so you can learn them easily. You can also click any letter to see details of long words starting with 👇👇👇

A | C | D | E | L | N |

BeneficialBrotherhood
BeautifulBreakthroughs
BehaviouralBattleground
BrainstormingBreathlessly
BreakthroughBeneficiary
BiographicalBelongings
BreathtakingBiophysics
BenevolentBackgrounds
BoundariesBureaucracy
BusinessmanBiochemical
BusinesswomanBiomedicine
BiodegradableBarbiturate
BibliographyBrainstormed
BroadcastingBookkeeping
BrightnessBricklaying
BusinesslikeBiosecurity
BiomechanicsBiostatistics
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List of long English words starting with B for vocabulary building.
Boost your vocabulary with long words starting with B.

Common Long Words That Start with B

WordMeaning
BeneficialHelpful or good
BeautifulPleasing to the eye
BehaviouralRelated to behavior
BrainstormingGenerating ideas together
BreakthroughAn important discovery or progress
BreathtakingExtremely impressive
BenevolentKind and generous
BoundariesLimits or borders
BusinessmanA man engaged in business
BusinesswomanA woman engaged in business
BiodegradableCan naturally break down
BibliographyList of sources or books
BroadcastingSending information via media
BrightnessAmount of light
BookkeepingRecording financial accounts
BrotherhoodClose relationship or association
BeneficiaryPerson who receives benefits
BelongingsPersonal possessions
BackgroundsPast experiences or settings
BureaucracySystem of administration with rules

Eleven Letter Long Words Starting with B

babysittingbackbencherbackcountry
backfillingbackgroundsbackpackers
backpackingbackscatterbackslashes
backslidingbackstreetsbackstretch
backtrackedbacteraemiabacteriocin
bacteriuriabaculovirusballplayers
balustradesbankruptingbarbiturate
barebackingbarycentricbaserunning
basketballsbasketweavebastardized
bathymetricbattlefieldbattlefront
battlementsbattleshipsbattlespace
beachcomberbeauticiansbeautifully
beautifyingbefriendingbehaviorism
behavioristbehaviouralbeleaguered
belligerentbellwethersbellybutton
belowgroundbenchmarkedbenediction
benefactorsbeneficencebeneficiary
benefittingbenevolencebereavement
bestsellersbestsellingbewildering
bibliomaniabibliophilebibliotheca
bicarbonatebicentenarybifurcation

Ten Letter Long Words Starting with B

bacitracinbackboardsbackgammon
backgroundbackpackerbackplanes
backsplashbackstreetbackstroke
backwatersbacteremiabalconette
balderdashballerinasballistics
ballooningbalustradebamboozled
bandleaderbandwidthsbanishment
bankruptcybanquetingbarbarians
barbecuingbarbershopbargaining
barometersbarometricbarracudas
barramundibarricadedbarricades
barristersbartendersbartending
baseboardsbasketballbathymetry
battalionsbattleshipbeachfront
beatitudesbeaujolaisbeautician
bedfellowsbedspreadsbeekeepers
beekeepingbeforehand
Ten-letter English words starting with B for vocabulary building.
Expand your vocabulary with ten-letter words beginning with B.

Long Words Starting with Letter B And Ending in D

BackgroundBamboozled
BarricadedBeforehand
BefriendedBenefitted
BequeathedBewildered
BifurcatedBlackboard
BloodhoundBobblehead
BookmarkedBorderland
BottomlandBrainchild
BreadboardBreastfeed
BridesmaidBridgehead
BrightenedBroadsword
BrominatedBrownfield
BrutalizedButtressed

Long Words Starting with Letter B And Ending in S

BackgroundsBackpackers
BackslashesBackstreets
BaculovirusBallplayers
BalustradesBasketballs
BattlementsBattleships
BeauticiansBellwethers
BenefactorsBestsellers
BiochemistsBiodynamics
BiographersBiographies
BiologicalsBiopolymers
BioreactorsBioreagents
BiosciencesBirthplaces
BirthstonesBlackboards
BlackheartsBlacksmiths
BlasphemysBlasphemeous
BlastocystsBlatherings
BlepharitisBlessedness
BloodhoundsBloodstains
BlueberriesBluebonnets
BlunderbussBobbleheads
BodyworkersBondholders
BookbindersBookkeepers
BooksellersBookshelves
BootleggersBorderlands
BorderlinesBottlenecks
BoundednessBrachiopods
BrainstormsBreadboards
BreadcrumbsBreadsticks
BreakpointsBreakwaters
BricklayersBridesmaids
BrightenersBrittleness
BroadsheetsBronchioles
BroomsticksBrownfields
BrownstonesBrucellosis
BrutalitsBureaucrats
BushrangersButterflies
Buttonholes

Long Words Starting with Letter B And Ending in E

BarbiturateBreastplate
BasketweaveBristlecone
BattlespaceBrushstroke
BeneficenceBupivacaine
BenevolenceBibliophile
BicarbonateBillionaire
BiomedicineBiomolecule
BlogosphereBoilerplate
BourgeoisieBoutonniere

Long Words With Vowels After B

BABEBIBOBU
babysittingbeautifullybillionairebobbleheadsbulletproof
battlespacebeleagueredbibliophilebookbindingbullfighter
backpackersbefriendingbicarbonateborderlinesbullmastiff
battlementsbelligerentbiochemicalbottlebrushbumbershoot
battlefrontbenchmarkedbiofeedbackbourgeoisiebureaucracy
battlefieldbellybuttonbiomedicinebottlenecksburglarized
bathymetricbenefactorsbiographiesbootleggersbureaucrats
backbencherbeneficiarybiomoleculebookshelvesbushwalking
basketballsbenefittingbirdwatcherbookmarkingbushwhacked
baserunningbenevolencebirthplacesbookkeepingbusinessman
ballplayersbestsellersbirthstonesbookkeepersbusinessmen
backgroundsbereavementbisexualitybombardmentbuttercream
backcountrybestsellingbittersweetboilerplatebutterflies
backpackingbewilderingbifurcationbodybuilderbuttonholes
Long words with vowels after B
Learn long words where vowels follow B

Rare Long Words That Start With A

WordMeaning
BatrachophagousFeeding on frogs
BibliokleptSomeone who steals books
BrachycephalousHaving a short, broad head
BatrachomyomachyA trivial or ridiculous fight
BumfuzzlementConfusion or perplexity
BrachytherapyA type of radiotherapy for cancer
BlastocystectomySurgical removal of a blastocyst
BibliopoleA dealer in rare books
BoustrophedonWriting alternating left-to-right and right-to-left
BrachygraphyShort-hand writing or concise writing
BrontophobiaFear of thunder and lightning
BarbiturateA type of sedative drug
BronchiectasisChronic widening of the bronchi in the lungs
BumptiousnessSelf-assertive or arrogant behavior
BioluminescenceProduction of light by living organisms
BipartisanshipCooperation between two political parties
BrachypterousHaving short wings
BibliomaniaExcessive love of books
BradykinesiaSlowness of movement (medical term)
BuccaneeringEngaging in piracy or adventurous exploits

FAQs About Long Words That Start With B

Q1. What counts as a “long word” that starts with B?

A long word usually has 8 or more letters and begins with the letter B. Many are technical, scientific, or literary.

Q2. Give some common long words that start with B.

Common long B-words used in writing or conversation include:
• barbiturate
• bioluminescence
• bibliomania
• bradykinesia
• bumfuzzlement

Q3. Can you give some example sentences of long words that start with B?

• The scientist studied the bioluminescence of deep-sea creatures.
• His obsession with collecting rare books was a clear case of bibliomania.
• The senator’s bipartisanship helped pass the crucial legislation.
• During the storm, she developed brontophobia, fearing the thunder.
• The pirate crew was known for its buccaneering adventures.

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Aqsa Ali
ByAqsa Ali
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Aqsa Ali is a content writer at Englishan.com with a BS in English from the University of Agriculture Faisalabad (UAF). She has also completed the IELTS Academic exam with an 8 band score, reflecting strong command of academic English. Since 2022, she has written vocabulary-focused blog posts that simplify complex terms and explain word meanings step by step. Aqsa is especially known for using visuals and illustrations that make vocabulary easier to remember—her image-based lessons are regularly praised by learners for being clear, memorable, and engaging.
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