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don't

1 don't /ˈdoʊnt/
1 don't
/ˈdoʊnt/
Britannica Dictionary definition of DON'T
used as a contraction of do not
Usage Don't is also sometimes used as a contraction of “does not.” This use is often regarded as an error, but it is common in some varieties of English, especially in informal speech.
2 don't /ˈdoʊnt/ noun
plural don'ts
2 don't
/ˈdoʊnt/
noun
plural don'ts
Britannica Dictionary definition of DON'T
[count] informal
: something that a person should not do usually used in the phrase dos and don'ts