echo chamber

American  

[ek-oh cheym-ber] / ˈɛk oʊ ˌtʃeɪm bər /

noun

1. a room or other enclosed space that amplifies and reflects sound, generally used for broadcasting or recording echos or hollow sound effects: The hallway is a giant echo chamber.

   an open-air echo chamber;

   The hallway is a giant echo chamber.

2. an environment in which the same opinions are repeatedly voiced and promoted, so that people are not exposed to opposing views: We need to move beyond the echo chamber of our network to understand diverse perspectives.

   an online echo chamber;

   We need to move beyond the echo chamber of our network to understand diverse perspectives.

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echo chamber British  

noun

1. Also called: reverberation chamber.  a room with walls that reflect sound. It is used to make acoustic measurements and as a source of reverberant sound to be mixed with direct sound for recording or broadcasting

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Etymology

Origin of echo chamber

An Americanism dating back to 1935–40

Example Sentences

More specifically, here are some of the tactics I use so that I don’t live in an AI echo chamber:

From The Wall Street Journal • Mar. 21, 2026

Lost in his own pillow-strewn echo chamber, Lindell surrounded himself with people who would take his money and tell him what he wanted to hear.

From Slate • Jun. 25, 2025

Mia, who has exchanged messages with moderators on the website, describes the site as an "echo chamber" which can "push people over the edge".

From BBC • Feb. 5, 2025

In too many ways, they appear locked in an echo chamber, largely talking to each other and convincing themselves that all intelligent and rational people agree with them.

From Salon • Nov. 14, 2024

I marveled at the choice; it was an echo chamber of a word.

From "The Gene" by Siddhartha Mukherjee