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Reading: Long Words That Start With J – Complete List
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Englishan > Vocabulary > Words List > Long Words > Long Words That Start With J – Complete List
Long Words

Long Words That Start With J – Complete List

Aqsa Ali
By
Aqsa Ali
Last updated: January 12, 2026
6 Min Read
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Sometimes, discovering a new word can make your language more interesting and expressive. Long words that start with J are perfect for this because they can make your writing stronger and your speech more impressive. In this article, we’ll learn about some of the most useful and fascinating words. Let’s get started!

In This Page
  • List of Long Words That Start with J
  • Common Long Words that Start with J
  • Eleven Letter Long Words Starting with J
  • Ten Letter Long Words Starting with J
  • Long Words Starting with Letter J And Ending in D
  • Long Words Starting with Letter J And Ending in G
  • Long Words Starting with Letter J And Ending in S
  • Long Words With Vowels After J
  • Rare or Interesting Long Words Starting With J
  • FAQs About Long Words Starting With J

List of Long Words That Start with J

This list has all the long J words you need to help you understand and use them easily. Explore the list and start learning today! You can also click any letter to see details of long words beginning with 👇👇👇

A | B | C | D | E | F | G | L | N |

JackknifeJackanaperyJabberwocky
JackpottingJackhammeredJackfruitful
JailbreakerJacobinicalsJackhammering
JargonistsJaggednessesJacquardwork
JealousiesJailbreakersJadishnesses
JeopardizeJambalayasJapanning
JeremiadsJapanninglyJanitorially
JettisonedJargonisticJavelinlike
JocularismJealousinglyJeopardization
JoineriesJeopardizingJestfulnesses
JournalingJestfulnessJetpropellers
JournalistJettingnessJettisonables
JourneyingJettisonableJewelleresses
JoustinglyJewelleriesJigglinesses
JoyfulnessJingoisticalJingoistically
JournalistlyJournalisticlyJazzinesses
JudgementJourneywomanJournalizers
JudiciariesJoylessnessesJournalizing
JuicinessJudicialismJourneymenly
JunketingsJudiciouslyJoyfullnesses
JabberingsJubilationsJubilantly
JackalopesJudicatoriesJejunenesses
JackbootedJudicialnessJuggernauts
JacketlessJudiciousnessJugglingness
JacobinismJumpstartingJuniperously
JactationsJustifiablesJustifiably
JaggednessJustificationsJuvenilities
JailbreakingJuvenescentlyJuxtaposition
JalapenoesJargonizationJargonized
JanitoringJargonizing
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A list of long English words starting with the letter J.
Discover long and interesting words that start with J to boost your vocabulary.

Common Long Words that Start with J

JackalopesJackknife
JackbootedJudiciousness
JackhammerJetpropellers
JackpottingJingoistical
JailbreakerJingoistically
JailbreakingJournalizing
JalapenoesJournalizers
JambalayasJournalistic
JamboreeJournalistly
JargonisticJourneywoman
JargonizedJourneymenly
JargonizingJubilations
JargonizationJubilantly
JargonistsJuggernauts
JealousiesJumpstarting
JealousnessJuxtaposition
JeopardizingJacarandas
JeopardizationJacobinism
JeremiadsJustifiables
JettisonableJustifiably
JoyfulnessesJustifications
JoylessnessesJuvenilities
JudiciariesJudicialism
JudicialnessJudiciously

Eleven Letter Long Words Starting with J

JabberinglyJackbooting
JackknifingJacklighting
JackpottingJackrabbits
JailbreakerJanitorship
JanissariesJardinieres
JargonisingJargonistic
JargonizingJawbreakers
JuxtaposingJealoushood
JealousnessJellyfishes
JeopardisedJeopardises
JeopardizedJeopardizes
JitterinessJoblessness
JockeyshipsJogtrotting
JohnnycakesJointedness
JointressesJollinesses
JolterheadsJournalings
JournalisedJournaliser
JournalisesJournalisms
JournalistsJournalized
JournalizerJournalizes
JournallingJourneywork
JovialitiesJoylessness
JubilanciesJubilarians
JubilationsJudgemental
JudicaturesJudiciaries
JudiciouslyJuggernauts
Juvenescent
Eleven-letter words starting with J for vocabulary.
Learn eleven-letter words starting with J.

Ten Letter Long Words Starting with J

judicaturejackrabbit
jamahiriyajanitorial
jawbreakerjealousies
jeopardisejeopardize
jettisonedjobseekers
jockstrapsjournaling
journalismjournalist
journeyingjourneyman
journeymenjubilation
judgementsjudgmental

Long Words Starting with Letter J And Ending in D

JackarooedJargonised
JackbootedJargonized
JackeroooedJasperised
JackknifedJasperized
JackpottedJeopardied
JackrolledJerkinhead
JettisonedJimsonweed
JogtrottedJournalled
Juxtaposed

Long Words Starting with Letter J And Ending in G

jackallingjapanising
jaculatingjapanizing
jaundicingjavelining
jaywalkingjealousing
jellifyingjeoparding
jollifyingjournaling
journeyingjubilating
jugulatingjulienning
junkettingjustifying

Long Words Starting with Letter J And Ending in S

JunioritiesJaboticabas
JackhammersJackrabbits
JadednessesJaileresses
JamahiriyasJanissaries
JargonellesJawbreakers
JealousnessJellyfishes
JeopardisesJeopardizes
JerkinheadsJewelleries
JitterinessJoblessness
JockeyshipsJohnnycakes
JointednessJournalings
JournalisesJournalisms
JournalistsJournalizes
JovialitiesJubilations
JudicationsJudicatures
JudiciariesJuggernauts
Long words that start with J and end with S
Explore interesting long words beginning with J and ending in S

Long Words With Vowels After J

JAJEJIJOJU
jargonautjeopardizejitterbuggedjollificationjurisdiction
jackalopesjeopardyjournalisticjuxtaposition
jackhammerjejunostomyjovialnessjustifiable
jacquardjeeringlyjocularityjustificatory
jailbreakjeopardizerjocundityjurisprudence
jabberwockyjoyfulnessjuvenescence
jamboreejovialityjudicially
jambalayajusticiary
jawbreakerjuncture
janitorial
Long words starting with J followed by vowels
Explore long words that start with J and have vowels next

Rare or Interesting Long Words Starting With J

WordMeaning
jabberwockyA nonsense poem; also used to describe nonsensical speech
jactitationA false or boastful statement; tossing or shaking
jambalayaA Creole/ Cajun rice dish with meat/seafood and vegetables
jaculiferousBearing or producing darts or needles (botany/anatomy)
jejunostomyA surgical opening into the jejunum (medical)
jejunenessThe quality of being dry, uninteresting, or simplistic
jingoisticExtreme patriotism, often aggressive
jocoselyDone in a joking or playful manner
jollificationFestive celebration or merrymaking
jurisdictionThe official power to make legal decisions and judgments
jurisprudenceThe theory or philosophy of law
juxtapositionThe act of placing things side by side for contrast
juvenescenceThe state of becoming young or youthful again
justificatoryServing to justify or explain something
jackanapesAn impudent, mischievous person

FAQs About Long Words Starting With J

Q1. What are long words that start with J?

These are English words beginning with the letter J and usually having 10 or more letters. They can be formal, literary, technical, or playful. Examples include jeopardize, jurisdiction, jollification, juxtaposition, and jurisprudence.

Q2. Can you give some common long words?

Yes! Here are some commonly used long J-words:
• Jeopardize
• Jurisdiction
• Jollification
• Juxtaposition
• Jurisprudence
• Judgmental
• Justifiable
• Journalistic
• Jubilatory

Q3. Can you give some example sentences?

Sure! Here are a few:
• The new law expanded the jurisdiction of local authorities.
• His constant lateness could jeopardize his promotion.
• They organized a jollification to celebrate the festival.
• The essay discussed the juxtaposition of modern and classical art.
• The professor specializes in jurisprudence and legal theory.

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  • 25 Physical Science Words That Start With J
  • 35 Four-Letter Words That Start With J

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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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