- an inferring, theorizing, or predicting from incomplete or uncertain evidence; guesswork: an editorial full of conjecture
- an inference, theory, or prediction based on guesswork; guess
- Obs. occult divination
Origin of conjecture
Middle English from Classical Latin conjectura, a putting together, guess, inference from conjectus, past participle of conjicere, to throw together, guess from com-, together + jacere, to throw: see jettransitive verb
-·tured, -·tur·ing