Definition

1. Noun:
   • An enclosed space designed to produce reverberation of sound: A physical room or chamber constructed with highly reflective surfaces to cause echoes, used for acoustic testing or to create specific sound effects.
   • A metaphorical environment where a person encounters only beliefs or opinions that reinforce their own: A situation, especially on social media or in certain groups, where individuals are exposed only to information or ideas that reflect and amplify their existing views, limiting exposure to differing perspectives.

Examples of Usage

• Noun (Literal):

  • The recording studio built a special echo chamber to test the acoustics of the new microphone.
  • In the echo chamber, her voice reverberated for several seconds.

• Noun (Metaphorical):

  • Social media algorithms can create an echo chamber, where users only see news that aligns with their political beliefs.
  • He realized his club had become an echo chamber, with no one ever challenging the group's core ideas.

Advanced Usage

• "to be in an echo chamber": To be in a situation where one's pre-existing views are constantly reinforced.
  • It's easy to be in an echo chamber online if you only follow people who agree with you.
• "to create/form an echo chamber": To establish an environment that reinforces a single viewpoint.
  • The policy of banning dissenting voices formed a powerful echo chamber within the organization.

Variants and Related Words

• Echo (n/v): The repetition of a sound caused by reflection; to be repeated by or as if by an echo.
  • The echo of his shout came back from the canyon walls.
• Chamber (n): A room used for a specific purpose; an enclosed space.
  • The gas was stored in a sealed chamber.

Synonyms

• Reverberation room (for the literal meaning).
• Ideological bubble, information cocoon, filter bubble (for the metaphorical meaning).

Related Phrases

• Echo chamber effect: The phenomenon or result of being in a metaphorical echo chamber.
  • The echo chamber effect makes it difficult for people to understand opposing arguments.
• Digital echo chamber: Specifically refers to echo chambers created by digital media and online platforms.
  • The study focused on political polarization in digital echo chambers.

Related Idioms

• Preaching to the choir: Speaking to people who already agree with you, which is a related concept to the metaphorical echo chamber.
  • His speech about environmental reform was just preaching to the choir.

Noun

1. an enclosed space for producing reverberation of a sound