conjecture
con·jec·ture/kənˈd͡ʒɛkt͡ʃə/noun, verb
conjecture is spelled C-O-N-J-E-C-T-U-R-E, 3 syllables: con·jec·ture. The wrong spelling people search most is conjecutre: about 10 Bing searches a month in the United States (September 2025 to August 2026), about 1 in 345 of all searches for the word. Conjecture is a noun meaning “A statement or an idea which is unproven, but is thought to be true; a guess”. The plural of conjecture is conjectures.
How many letters and syllables are in conjecture?
| Letters | 10: C-O-N-J-E-C-T-U-R-E |
|---|---|
| Syllables | 3: con·jec·ture |
| In writing | 2.2 times per million words; the 18,297th most frequent word form |
| Wrong spellings searched | 1; the most searched, conjecutre, about 10 Bing searches a month (all of them) |
| Rhymes with |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026); rhymes and same-letter words are computed by PlainSpell from its own word list.
How do you spell conjecture?
Conjecture is spelled C-O-N-J-E-C-T-U-R-E. One wrong spelling is searched or written often enough to measure; together they are about 1 in 344 of the searches for conjecture in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is conjecture?
Conjecture appears 2.2 times per million words in written English, the 18,297th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce conjecture?
- UK /kənˈd͡ʒɛkt͡ʃə/
- UK [kʰənˈd͡ʒɛkt͡ʃə]
- Australia /kənˈd͡ʒekt͡ʃə/
Conjecture has 3 syllables, split con·jec·ture in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-au-conjecture.ogg, En-us-conjecture.ogg, Wikimedia Commons (author and licence on each file's page).
What rhymes with conjecture?
One word on PlainSpell end in the same sounds as conjecture from its last stressed vowel (/ɛktʃə/, British pronunciation):
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of conjecture
- conjectures plural, present, singular, he/she/it
- conjecturing participle, present
- conjectured participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does conjecture mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A statement or an idea which is unproven, but is thought to be true; a guess.
I explained it, but it is pure conjecture whether he understood, or not.
- 2
A supposition based upon incomplete evidence; a hypothesis.
The physicist used his conjecture about subatomic particles to design an experiment.
- 3
A statement likely to be true based on available evidence, but which has not been formally proven.
- 4
obsoleteInterpretation of signs and omens.
verb
- 1
To guess; to venture an unproven idea.
I do not know if it is true; I am simply conjecturing here.
- 2
To infer on slight evidence; to guess at.
February 22, 1685, Robert South, All Contingences under the Direction of God's Providence (sermon preached at Westminster Abbey)
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Conjecture in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | conjecture , conjecturer |
| German | Vermutung, Verdacht, Mutmaßung , vermuten , Hypothese, Konjektur |
| Portuguese | conjetura, conjectura , conjeturar , hipótese |
| Spanish | conjetura , conjeturar, barruntar, elucubrar |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does conjecture come from?
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)).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).