mistake
noun
mɪˈsteɪk 
mɪˈsteɪk 
1 an action or an opinion that is not correct, or that produces a result that you did not wantIt's easy to make a mistake.This letter is addressed to someone else—there must be some mistake.It would be a mistake to ignore his opinion.Don't worry, we all make mistakes.You must try to learn from your mistakes.Leaving school so young was the biggest mistake of my life.I made the mistake of giving him my address.It was a big mistake on my part to have trusted her.a great/serious/terrible mistakeIt's a common mistake (= one that a lot of people make).2 a word, figure, etc. that is not said or written down correctlySynonym
errorIt's a common mistake among learners of English.The waiter made a mistake (in) adding up the bill.Her essay is full of spelling mistakes.Idioms
and no mistake
(old-fashioned, especially British English) used to show that you are sure about the truth of what you have just saidThis is a strange business and no mistake.by mistake
by accident; without intending to
I took your bag instead of mine by mistake.make no mistake (about something)
used to emphasize what you are saying, especially when you want to warn somebody about something
Make no mistake (about it), this is one crisis that won't just go away.in mistake for something
thinking that something is something else
Children may eat pills in mistake for sweets.
Usage note: mistakeerror inaccuracy slip howler misprintThese are all words for a word, figure or fact that is not said, written down or typed correctly.mistake a word or figure that is not said or written down correctly: It's a common mistake among learners of English. ◇ spelling mistakeserror (rather formal) a word, figure, etc. that is not said or written down correctly: There are too many errors in your work. Error is a more formal way of saying mistake.inaccuracy (rather formal) a piece of information that is not exactly correct: The article is full of inaccuracies.slip a small mistake, usually made by being careless or not paying attentionhowler (informal, especially British English) a stupid mistake, especially in what somebody says or writes: The report is full of howlers. A howler is usually an embarrassing mistake which shows that the person who made it does not know something that they really should know.misprint a small mistake in a printed texta(n) mistake/error/inaccuracy/slip/howler/misprint in somethingto make a(n) mistake/error/slip/howlerto contain/be full of mistakes/errors/inaccuracies/howlers/misprints