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

See Examples For:

echo chamber

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

The committee addressed concerns that Yale is perceived as an intellectual echo chamber, a criticism leveled at many universities and academic disciplines.

From The Wall Street Journal ● Apr. 15, 2026

The board's apparent belief that nothing is as bad as it seems and that fans need to understand how lucky they are gets them nowhere - only further ensconced in their own echo chamber.

From BBC ● Dec. 14, 2025

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

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

From "The Bell Jar" by Sylvia Plath