English Reference
Word noun · verb

feedback

n. · v.
US /ˈfidˌbæk/ UK /fˈiːdbæk/ feed·back UK spelling feedbacks
Definition
  1. 01 B2 Upper Intermediate Music

    n.the high, annoying sound made when a microphone is too close to a speaker.

    n.the screeching or howling sound caused by an acoustic loop between a microphone and a loudspeaker.

    Simple

    “The lead singer moved too close to the speakers and caused a loud burst of feedback.”

    In context

    “The sound engineer scrambled to adjust the levels after a sudden spike of feedback pierced through the monitors during the soundcheck.”

    Usage

    Often used with the verb 'get' or 'hear'.

    Synonyms
    interferencedistortion
  2. 02 C1 Advanced Technical Science

    n.the process where part of a machine's output is sent back to the input to help control it.

    n.the return of a portion of the output of a process or system to the input, especially when used to maintain performance or control.

    Simple

    “The thermostat uses a feedback loop to keep the room at a steady temperature.”

    In context

    “The biological system relies on a complex negative feedback mechanism to regulate hormone levels and maintain internal homeostasis.”

    Usage

    Commonly used in the phrases 'positive feedback' and 'negative feedback'.

    Teacher's tip

    In technical contexts, 'positive feedback' often refers to a self-reinforcing loop that can lead to instability, which is different from the everyday meaning of 'praise'.

    Synonyms
    loopreturn
  3. 03 B2 Upper Intermediate AcademicFormal

    v.to give information or opinions back to someone about a project or performance.

    v.to provide evaluative information or report results back to a person or system.

    Simple

    “The manager promised to feedback the results of the survey to the staff next week.”

    In context

    “The researchers will feedback their findings to the local community before publishing the final report in a peer-reviewed journal.”

    Usage

    Often used with the preposition 'to' or 'on'.

    Teacher's tip

    This verb use is common in corporate and educational settings but can sound overly formal in casual conversation.

    Synonyms
    reportrespond

Usage feedback to the editors · feedback use · negative feedback

Real-world usage

“Thank you for taking time to provide your feedback to the editors.”

Phys.org· 15 Aug 2026
Etymology

From feed + back.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Common
Updated