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English definition of “know”

know

verb [T] (FEEL CERTAIN)   /noʊ/ (past tense knew  /nu/, past participle known  /noʊn/)
to feel certain about something: I know I’d enjoy myself if I went. [+ (that) clause] I know (that) I took those library books back. [+ wh- word] I don’t know whether or not I should go to college. to feel certain about something: I know I’d enjoy myself if I went. [+ (that) clause] I know (that) I took those library books back. [+ question word] I don’t know whether or not I should go to college.
(Definition of know verb (FEEL CERTAIN) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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