conjecture

noun, verb — 6 senses

conjecture

noun

UK /kənˈd͡ʒɛkt͡ʃə/ · CA, US /kənˈd͡ʒɛkt͡ʃɚ/

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)).

1

Formal 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

Formal A supposition based upon incomplete evidence; a hypothesis.

  • The physicist used his conjecture about subatomic particles to design an experiment.
3

Human sciences, Linguistics, Mathematics, Sciences A statement likely to be true based on available evidence, but which has not been formally proven.

4

Obsolete Interpretation of signs and omens.

Derived terms
43 termsabc conjecture, Beal conjecture, Beal's conjecture, Brocard's conjecture, Collatz conjecture, conjecturingly, Cramér's conjecture, Dickson's conjecture, Dixmier conjecture, double bubble conjecture, Elliott-Halberstam conjecture, Fuglede's conjecture, Gilbreath's conjecture, Goldbach's conjecture, Heawood conjecture, Hedetniemi's conjecture, honeycomb conjecture, Ilieff's conjecture, Jacobian conjecture, Keller's conjecture, Langlands conjecture, Legendre's conjecture, Lehmer's conjecture, Leopoldt's conjecture, Mach's conjecture, metaconjecture, Meyniel's conjecture, misconjecture, Oesterlé-Masser conjecture, Pacman conjecture, Poincaré conjecture, Polignac's conjecture, Pólya's conjecture, Ramanujan conjecture, Ramanujan-Petersson conjecture, Ryu-Takayanagi conjecture, Sendov's conjecture, Singmaster's conjecture, SYZ conjecture, Szpiro's conjecture, Thurston's geometrization conjecture, twin prime conjecture, Zarankiewicz's crossing number conjecture
Related terms
conject, conjectural

conjecture

verb

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)).

1

Formal To guess; to venture an unproven idea.

  • I do not know if it is true; I am simply conjecturing here.
  • What could have been done by such a machine downhill can only be conjectured, for the maximum speed was restricted rigidly to 80 m.p.h.1952 December, 'Mercury', “Modern French Locomotive Performance”, in Railway Magazine, page 804:
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)
  • "Most likely he who is the shorter of the two;—no! he goes in the first, and is, of course, the eldest; but we have no time for conjecturing now." Human reason can then, at the best, but conjecture what will be.1838 (date written), L[etitia] E[lizabeth] L[andon], chapter XIX, in Lady Anne Granard; or, Keeping up Appearances. […], volume I, London: Henry Colburn, […], published 1842, →OCLC, page 243:
Derived terms
conjecturability, conjecturable, misconjecture, unconjectured

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.

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