don't

don't

A child listens to a parent's many don'ts.

Definition
  1. Contraction (verb phrase):
    • Do not: "don't" is the contracted form of "do not," used to form negative statements or commands with the subjects I, you, we, they, and plural nouns. It expresses refusal, prohibition, or the absence of an action.
      • I don't understand the question. (I do not understand.)
      • Don't touch that! (Do not touch that.)
Usage Examples

  • Negative statements:

    • They don't like spicy food. (They do not enjoy spicy food.)
    • We don't have any money left. (We do not possess any remaining money.)

  • Prohibitions or commands:

    • Don't run in the hallway. (Do not run in the hallway.)
    • Please don't be late. (Please do not arrive late.)

  • Questions (tag questions):

    • You know the answer, don't you? (You know the answer, do you not?)
Advanced Usage

  • "don't" as a noun: In informal English, "don't" can function as a noun meaning a prohibition or rule.

    • There are too many do's and don'ts in this office. (There are too many rules and prohibitions in this office.)

  • Emphatic use: "don't" can be stressed in speech for strong denial.

    • I don't care what you think! (I absolutely do not care.)
Variants and Related Words

  • Doesn't (contraction): "does not" — used with third person singular subjects (he, she, it).

    • She doesn't like coffee. (She does not like coffee.)

  • Didn't (contraction): "did not" — used for past tense negative statements.

    • They didn't arrive on time. (They did not arrive on time.)
Synonyms
  • Do not: the full, uncontracted form.
  • Never (adverb): used to express a stronger or habitual negative.
    • I never eat meat. (I do not eat meat at any time.)
Phrasal Verbs
  • Don't let on: to not reveal a secret or truth.
    • Don't let on that we are planning a party. (Do not reveal that we are planning a party.)
Related Idioms

  • Don't count your chickens before they hatch: do not assume success before it happens.

    • We might win the contract, but don't count your chickens before they hatch. (Do not be overconfident prematurely.)

  • Don't put all your eggs in one basket: do not risk everything on a single venture.

    • Invest in several companies; don't put all your eggs in one basket. (Diversify your investments.)