feedback

Critical assessment of a process or activity or of their results.

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

(control theory) The part of an output signal that is looped back into the input to control or modify a system.

The high-pitched howling noise heard when there is a loop between a microphone and a speaker.

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.”

To provide informational feedback to.

“His employees feedbacked him a lot more than he wanted.”

To convey by means of specialized communications channel.

“Customers feedbacked their complaints and some praise.”