feedback

When you give feedback, it means you offer a helpful response to someone's work or idea.

If you were recording your first album and you asked friends for feedback on which songs to include, you'd be asking them to offer their critical opinions on your music. Feedback is almost always offered or requested with the intention of improving the final product. Another meaning of feedback is a kind of sound distortion from an amplifier or microphone. This sense of electronic feedback has been around since about 1920, while the "critical response" definition didn't come into use until 1955.

Definitions of feedback
  1. noun
    the process in which part of the output of a system is returned to its input in order to regulate its further output
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    types:
    negative feedback
    feedback in opposite phase with (decreasing) the input
    positive feedback, regeneration
    feedback in phase with (augmenting) the input
    vicious circle, vicious cycle
    one trouble leads to another that aggravates the first
    type of:
    action, activity, natural action, natural process
    a process existing in or produced by nature (rather than by the intent of human beings)
  2. noun
    response to an inquiry or experiment
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    type of:
    answer, reply, response
    a statement (either spoken or written) that is made to reply to a question or request or criticism or accusation
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