IPA: /ˈfiːd.bæk/
KK: /ˈfidˌbæk/
Information or comments given about something, often to help improve it or evaluate its effectiveness.
The teacher asked for feedback on the new teaching methods to see how they could be improved.
Feedback → The word is formed from "feed" (from Old English "fēdan", meaning to give food or nourish) and "back" (meaning in reverse or return). The term refers to the process of providing information or responses that nourish or improve a situation or performance.
Think of 'feeding' information back into a system or process — that's why feedback means returning information to improve.