Definition of NO

  1. (noun)a negative
  2. (adj)(quantifier) used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of
  3. (adv)referring to the degree to which a certain quality is present
  4. (adv)not in any degree or manner; not at all
  5. (adv)used to express refusal or denial or disagreement etc or especially to emphasize a negative statement