guess

nouns

a message expressing an opinion based on incomplete evidence
conjecture, guess, hypothesis, speculation, supposition, surmisal, surmise
an estimate based on little or no information
dead reckoning, guess, guessing, guesswork, shot

verbs

expect, believe, or suppose
"I imagine she earned a lot of money with her new novel"; "I thought to find her in a bad state"; "he didn't think to find her in the kitchen"; "I guess she is angry at me for standing her up"
guess, imagine, opine, reckon, suppose, think
is derived from
guesser
put forward, of a guess, in spite of possible refutation
"I am guessing that the price of real estate will rise again"; "I cannot pretend to say that you are wrong"
guess, hazard, pretend, venture
is derived from
guesser
is derived from
guessing
judge tentatively or form an estimate of (quantities or time)
"I estimate this chicken to weigh three pounds"
approximate, estimate, gauge, guess, judge
is derived from
guesser
guess correctly; solve by guessing
"He guessed the right number of beans in the jar and won the prize"
guess, infer
is derived from
guesser