conjecture

/kənˈd͡ʒɛk.t͡ʃə(ɹ)/

//kənˈd͡ʒɛk.t͡ʃə(ɹ)// noun

By · According to Wiktionary data (CC BY-SA) ·

"conjecture" is a 10-letter English headword indexed on PlainSpell.

The verdict

“conjecture” has 15 generated spelling variants in the English index at frequency #18,276. The variants make it a useful spelling check.

#18,276
frequency rank, English
5,599
“C” headwords
15
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - A statement or an idea which is unproven, but is thought to be true; a guess.

Corpus desk

Index EN-conjecture · conjecture · English

conjecture · rank #18,276 · 15 variants · 0 confusables

  • FREQ-MID #18,276
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-HIGH 15 variants
  • BOOK-DENSE 5,599
  • PHOTO-FINISH computation

Nearest frequency peer: computation (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “conjecture”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “conjecture” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for conjecture
PropertyValue
Headwordconjecture
LanguageEnglish
Part of speechNoun
IPA/kənˈd͡ʒɛk.t͡ʃə(ɹ)/
Letters10
Frequency rank#18,276
Misspellings tracked15
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “conjecture”

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).conjecturelands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “computation” (#18,275), “conspicuous” (#18,277), “compounded” (#18,274). Among 5,599 “C” headwords, “conjecture” is #18,276. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 15 spelling variants around conjecture (IPA /kənˈd͡ʒɛk.t͡ʃə(ɹ)/), anoun. Corpus frequency is #18,276 among 5,599 “C” headwords. Wiktionary lists 4 senses, so context still picks the gloss.

Our generated misspelling index lists 15 likely wrong-spelling variants for conjecture, with forms such as "cconjecture", "cnojecture", and "cojnecture". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. This entry stands alone in our confusable dataset, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From Old French, from Latin coniectūra (“a guess”), from coniectus, perfect passive participle of cōniciō (“throw or cast together; guess”), from con- (“together”) + iaciō (“throw, hurl”); see jet. Compare adjective, eject, inject, project, reject, subject,… The correct English form is conjecture, spelled C-O-N-J-E-C-T-U-R-E.

Definition

  1. 1
    A statement or an idea which is unproven, but is thought to be true; a guess.
  2. 2
    A supposition based upon incomplete evidence; a hypothesis.
  3. 3
    A statement likely to be true based on available evidence, but which has not been formally proven.
  4. 4
    Interpretation of signs and omens.

Recorded use

Wiktionary examples

These source excerpts show how conjecture appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. I explained it, but it is pure conjecture whether he understood, or not.
  2. The physicist used his conjecture about subatomic particles to design an experiment.

Etymology

From Old French, from Latin coniectūra (“a guess”), from coniectus, perfect passive participle of cōniciō (“throw or cast together; guess”), from con- (“together”) + iaciō (“throw, hurl”); see jet. Compare adjective, eject, inject, project, reject, subject, object, trajectory, deject, abject, surjection, bijection, interject. Compare typologically Russian прики́дывать (prikídyvatʹ) (akin to кида́ть (kidátʹ)).

This word in other languages

conjetura(Español)conjecture(Français)Vermutung(Deutsch)hipótese(Português)

Common misspellings

Also misspelled as:

  • cconjecture
  • cnojecture
  • cojnecture
  • conejcture
  • conjceture
  • conjeccture
  • conjectrue
  • conjectture
  • conjectuer
  • conjecturre
  • conjecutre
  • conjetcure
  • conjjecture
  • connjecture
  • ocnjecture

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of conjecture - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

cconjecture1cnojecture2cojnecture2conejcture2conjceture2conjeccture1conjectrue2conjectture1
Edit distance from "conjecture"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "conjecture"?
"conjecture" is spelled C-O-N-J-E-C-T-U-R-E. The IPA pronunciation is /kənˈd͡ʒɛk.t͡ʃə(ɹ)/.
What does "conjecture" mean?
As a noun, "conjecture" means: A statement or an idea which is unproven, but is thought to be true; a guess.
What are common misspellings of "conjecture"?
Common misspellings include "cconjecture", "cnojecture", "cojnecture", "conejcture", "conjceture". The correct spelling is "conjecture".
How do you pronounce "conjecture"?
The IPA (International Phonetic Alphabet) transcription for "conjecture" is /kənˈd͡ʒɛk.t͡ʃə(ɹ)/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "conjecture"?
From Old French, from Latin coniectūra (“a guess”), from coniectus, perfect passive participle of cōniciō (“throw or cast together; guess”), from con- (“together”) + iaciō (“throw, hurl”); see jet. Compare adjective, eject, inject, project, reject... See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "conjecture", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

compounded#18,274contradict#18,280fourteenth#18,313wastewater#18,216

Similar misspelling depth

Headwords with a similar count of attested misspellings (15 here; floor ≥5).

crackdown15 variantsexcessively15 variantsaffectionate15 variantsgrammatical15 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list