v. 1 conjecture, estimate, hypothesize, speculate, postulate, Slang guestimate or guesstimate We guessed that he might try to come in through the window 2 think, suppose, conclude, assume, believe, dare say, surmise, judge, deem, reckon, imagine, fancy, feel, suspect, divine I guess you were right about her
n. 3 conjecture, estimate, hypothesis, speculation, surmise, assumption, judgement, feeling, suspicion, supposition, postulate, theory; guesswork; Colloq shot in the dark, Slang guestimate or guesstimate My guess as to which card would turn up was wrong