don't

[dohnt]

verb

1. contraction of do not.

2. Nonstandard except in some dialects.,  contraction of does not.

noun

1. don'ts, customs, rules, or regulations that forbid something.

   The boss has a long list of don'ts that you had better observe if you want a promotion.

don't

/ dəʊnt /

contraction

1. do not

Word History and Origins

Origin of don't¹

First recorded in 1600–10