To conjecture is to make an educated guess rather than a stab in the dark; it involves piecing together bits of information to come to a plausible conclusion, as in “scientists conjecturing about the cause of …

A conjecture is considered proven only when it has been shown that it is logically impossible for it to be false. There are various methods of doing so; see methods of mathematical proof for more details.

CONJECTURE definition: 1. a guess about something based on how it seems and not on proof: 2. to guess, based on the…. Learn more.

CONJECTURE definition: the formation or expression of an opinion or theory without sufficient evidence for proof. See examples of conjecture used in a sentence.

Opinion or judgment based on inconclusive or incomplete evidence; guesswork. 2. An opinion or conclusion based on guesswork: The commentators made various conjectures about the outcome of …

When you conjecture, you form an opinion or reach a conclusion on the basis of information that is not certain or complete.

Can you guess what conjecture means? It's a word to use when you are not sure of something and have to "guess or surmise."

Definition of conjecture noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Dec 4, 2025 · conjecture (countable and uncountable, plural conjectures) (formal) A statement or an idea which is unproven, but is thought to be true; a guess.

the forming or expressing of an opinion without sufficient proof:[uncountable] Do you know that for a fact or is it only conjecture? an opinion or theory so formed or expressed:[countable] Another conjecture …