Bedeutung von “mistake” — Learner’s Dictionary

mistake

noun [ C ] us uk /mɪˈsteɪk/
We can't let a mistake like this happen again.It was an innocent mistake.Buying that car was a big mistake.She tried to cover up her mistakes.The good thing is, he's not afraid to learn from his mistakes.

A2 something that you do or think that is wrong:

a spelling mistake
He made / a lot of mistakes in his written test.
[ + to do sth ] It would be a big mistake to leave school.
[ + of + doing sth ] She made the mistake of giving him her phone number.
by mistake

B1 If you do something by mistake, you do it without intending to:

I picked up someone else's book by mistake.

(Definition von “mistake noun” aus dem Cambridge Learner's Dictionary © Cambridge University Press)