mistake
n. countablen. something you do or think that is not correct. It is often an accident or because you did not understand something.
n. an action, decision, or judgment that is incorrect or misguided. Often used to describe an unintentional deviation from accuracy or a standard.
I made a small mistake on the math test.
The waiter apologized for the mistake and brought the correct meal to our table immediately.
While some errors are easily corrected, a fundamental mistake in the early stages of the architectural design can lead to structural instability years later.
From Middle English mistaken, from Old Norse mistaka (“to take in error, to miscarry”); equivalent to mis- + take. Cognate with Icelandic mistaka (“to mistake”), Swedish missta (“to mistake”) (before apocope misstaga). The noun, which replaced earlier mistaking, is derived from the verb. Compare Swedish misstag (“mistake”, noun), Faroese mistak (“mitake”, noun), Icelandic mistak (“mistake”, noun).
Commonly used with the verb 'make' rather than 'do'.
I did a mistakeI made a mistakeIn English, you 'make' a mistake; 'do' is not used with this noun.