Definition of ACKNOWLEDGE

  1. (verb)declare to be true or admit the existence or reality or truth of
  2. (verb)report the receipt of
  3. (verb)express recognition of the presence or existence of, or acquaintance with
  4. (verb)express obligation, thanks, or gratitude for
  5. (verb)accept as legally binding and valid
  6. (verb)accept (someone) to be what is claimed or accept his power and authority