conjecture
verbverb [intransitive, transitive] (formal)Verb Forms present simple I / you / we / they conjecture he / she / it conjectures past simple conjectured -ing form conjecturing
jump to other results to form an opinion about something even though you do not have much information on it synonym guess conjecture (about something) We can only conjecture about what was in the killer's mind. conjecture what/how, etc… We can only conjecture what was in the killer's mind conjecture that… He conjectured that the population might double in ten years. conjecture something She conjectured the existence of a completely new species. conjecture something to do something The remains are conjectured to be thousands of years old.
See conjecture in the Oxford Advanced Learner's Dictionary