know (what's) best

Definition of know (what's) best

:to know (better than someone else) what is the best thing to do or say in a particular situation
  • I would take the highway myself, but you live here so you know best.

Word by Word Definitions

know play
  1. : to perceive directly : have direct cognition of

  2. : to have understanding of

  3. : to recognize the nature of : discern

  1. : knowledge

what play
  1. used as an interrogative expressing inquiry about the identity, nature, or value of an object or matter

  2. often used to ask for repetition of an utterance or part of an utterance not properly heard or understood

  3. : who

  1. : why

  2. : in what respect : how

  1. used as an interrogative expressing inquiry about the identity, nature, or value of a person, object, or matter

  2. : how remarkable or striking for good or bad qualities

  3. : whatever

best play
  1. : superlative of good

  2. : excelling all others

  3. : most productive of good : offering or producing the greatest advantage, utility, or satisfaction

  1. : superlative of well

  2. : in the best (see 1best) way : to greatest advantage

  3. : most

  1. : the best (see 1best) state or part

  2. : one that is best

  3. : the greatest degree of good or excellence

  1. : to get the better of : outdo

  1. : had best (see 2best 1)


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serious difficulty or misfortune

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