• The high-pitched howling noise heard when there's a loop between a microphone and a speaker.
  • (cybernetics, systems) The signal that is looped back to control a system within itself.
  • Critical assessment on information produced

    "After you hand in your essays, I will give both grades and feedback."


  • (transitive) To convey by means of specialized communications channel.

    "Customers feedbacked their complaints and some praise."

  • (transitive) To provide informational feedback to.

    "His employees feedbacked him a lot more than he wanted."

  • (music) To generate the high-frequency sound by allowing a speaker to cause vibration of the sound generator of a musical instrument connected by an amplifier to the speaker.

    "The show ended with a riot of feedbacking guitars."

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