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guess

verb [I/T]
 
 /ɡes/

Definition

to give an answer to a question when you do not have all the facts and so cannot be certain if you are right: [I] I didn’t know the answer, so I had to guess. [+ (that) clause] He guessed (that) she was about 50. To guess can also mean to give the correct answer: [T] She guessed the right answer. To guess also means to think or believe: [T] My plane leaves in an hour, so I guess I’d better be going. [T] "Is he going to call you back?" "I guess so."
(Definition of guess verb from the Cambridge Academic Content Dictionary © Cambridge University Press)
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