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English definition of “fool”

fool

noun [C]  /ful/ us  
a person who behaves in a silly way, or someone who lacks judgment: Crazy I may be, but I try not to be a fool. I know I’m making a fool of myself, but I can’t help it. They were dressed up like a bunch of fools.

fool

adjective [not gradable]  /ful/ not standard us  
silly or stupid: I made a damn fool mistake, but I’ll never do it again.

fool

verb [I/T]  /ful/ us  
to trick or deceive someone: [T] She tries to fool people about her age by wearing heavy makeup and coloring her hair. [I] You don’t owe me a penny, I was only fooling (= joking).
(Definition of fool from the Cambridge Academic Content Dictionary © Cambridge University Press)
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