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English definition of “fool”

fool

noun
 
 
/fuːl/
B1 [C] a stupid person: I was a fool to trust him.Stupid and silly people
make a fool (out) of sb B2 to try to make someone look stupid intentionally: She was always trying to make a fool out of me in front of my friends.Cheating and trickingPlotting and trappingHumiliating and degrading
make a fool of yourself B2 to behave in a silly or embarrassing way: I got drunk and started singing and making a fool of myself.Stupid and silly behaviour
act/play the fool to behave in a silly way, usually in order to make people laugh: Joe is always playing the fool in class.Stupid and silly behaviour
(Definition of fool noun from the Cambridge Learners Dictionary © Cambridge University Press)
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