Definitions
1.nounA 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.nounA supposition based upon incomplete evidence; a hypothesis."The physicist used his conjecture about subatomic particles to design an experiment."
3.noun(philology) A statement likely to be true based on available evidence, but which has not been formally proven.
4.nounInterpretation of signs and omens.
5.verbTo guess; to venture an unproven idea."I do not know if it is true; I am simply conjecturing here."
6.verbTo infer on slight evidence; to guess at.