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[loud-spee-ker] /ˈlaʊdˌspi kər/
any of various devices, usually electronic, by which speech, music, etc., can be intensified and made audible throughout a room, hall, or the like.
  1. a device for transforming electric signals into audible sound, most frequently used to reproduce speech and music.
  2. speaker (def 4).
Origin of loudspeaker
First recorded in 1880-85; loud + speaker Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for loudspeaker
Contemporary Examples
Historical Examples
  • The address to the crowd at the Capitol was broadcast on a loudspeaker.

  • Crawford's back was to them as he stared at the loudspeaker.

    The Second Voice Mann Rubin
  • After a full two minutes there was still no answer from the loudspeaker.

    The Affair of the Brains Anthony Gilmore
  • A loudspeaker shouted into the room: "Come out of there, Lane, or we'll blast you out."

    Mutineer Robert J. Shea
  • There was a babble of voices from the loudspeaker, punctuated by bursts of static.

    Death Wish Robert Sheckley
British Dictionary definitions for loudspeaker


a device for converting audio-frequency signals into the equivalent sound waves by means of a vibrating conical diaphragm Sometimes shortened to speaker Also called reproducer
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for loudspeaker

also loud-speaker, 1884, from loud (adj.) + speaker.

Online Etymology Dictionary, © 2010 Douglas Harper
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