conjecture

noun

There is a lot of conjecture surrounding the origins of the universe.

意味（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.

意味（2）

(formal) A supposition based upon incomplete evidence; a hypothesis.

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

意味（3）

(mathematics, linguistics) A statement likely to be true based on available evidence, but which has not been formally proven.

意味（4）

(obsolete) Interpretation of signs and omens.