• synonyms


[sahy-muh l-kast, ‐kahst, sim-uh l‐]
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  1. a program broadcast simultaneously on radio and television, or on more than one station, or in several languages, etc.
  2. a closed-circuit television broadcast of an event, as a horse race, while it is taking place.
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verb (used with or without object), si·mul·cast, si·mul·cast·ed, si·mul·cast·ing.
  1. to broadcast in this manner.
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Origin of simulcast

An Americanism dating back to 1945–50; simul(taneous) + (broad)cast
Can be confusedbroadcast narrowcast simulcast
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for simulcast


  1. (tr) to broadcast (a programme, etc) simultaneously on radio and television
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  1. a programme, etc, so broadcast
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Word Origin

C20: from simul (taneous) + (broad) cast
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

Word Origin and History for simulcast


"to broadcast simultaneously on radio and television," 1948, formed from simul(taneous) + (broad)cast. The noun is first recorded 1949, from the verb.

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Online Etymology Dictionary, © 2010 Douglas Harper