Third-person singular simple present indicative form of guess.(verb)
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Use "guesses" in a sentence
"The trustees' report, after all, is almost entirely based on assumptions -- long-term guesses about what the U.S. economy will be 50 or 75 years from now."
"One time the teacher asked us to try and figure out a similar question and took intuitive guesses from the rest of the class, most of which were to the effect that there's no way that there could be overlapping birthdays in a class of 28 kids."
"And one book which got no guesses is fairly popular; maybe I picked the line badly? mood: sore"