feedback

1 ENTRIES FOUND:
feedback /ˈfiːdˌbæk/ noun
feedback
/ˈfiːdˌbæk/
noun
Britannica Dictionary definition of FEEDBACK
[noncount]
1 
: helpful information or criticism that is given to someone to say what can be done to improve a performance, product, etc.
2 
technical
a  : something (such as information or electricity) that is returned to a machine, system, or process
b  : an annoying and unwanted sound caused by signals being returned to an electronic sound system