echo chamber

American  

[ek-oh chaym-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

See Examples For:

echo chamber

The myth dies hard, and in the internet age, when everyone can find their own echo chamber, it can go on for a long time.

From MarketWatch ● Oct. 8, 2026

Parents should try to break the echo chamber in which the child or teenager is receiving their information.

From Los Angeles Times ● May 23, 2026

“This echo chamber was used to deceive you.”

From Slate ● Apr. 1, 2026

O'Brien said it was sad that debating societies wanted to hear from an "echo chamber" but added: "We don't agree with taking the funding away because universities play a vital part in our society."

From BBC ● Feb. 11, 2026

I thought I must sound phony as an echo chamber, but Joan didn't pay any notice.

From "The Bell Jar" by Sylvia Plath