feedback
/ˈfiːdˌbæk/noun
Comments and judgments about how well something was done, given to help improve it.
Example sentences
- “My manager gave me helpful feedback on my presentation.”
- “The teacher returned our essays with written feedback in the margins.”
Uncountable: ask for some feedback or a piece of feedback, never 'feedbacks'. The word came from electronics, where output loops back into input.