Hello Friend. Feedback (emphasis on "and") is a fashionable borrowing of the Anglo-Saxon word "feedback", which is translated into Russian as "feedback". Generally, the verb feed has the original meaning of "feed", and the word "back" means "back", but to hell with linguistics, let's rather consider examples of use:
1) Each teacher needs to receive a regular feedback from their students in order to have an idea of how well they have learned the material.
2) To improve the quality of the company's services, it is necessary to constantly receive a feedback from their customers in order to be aware of the existing problems and to correct them in a timely manner.
The feedback is in the list: Slang