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[in-ter-kom] /ˈɪn tərˌkɒm/
noun, Informal.
an intercommunication system.
a microphone or receiver of an intercommunication system.
Origin of intercom
1935-40; by shortening Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for intercom
  • The fire safety desks also had an intercom system to speak to people inside the elevators.
  • It's time to run through another descent exercise, an instructor tells them over an intercom.
  • His station was announced over the intercom, and the train slowed with a lurch of brakes.
  • Access to any part, such as a remote intercom station, might provide access to all parts.
  • Over an ageing intercom, they take orders to buy and sell mustard seed and jaggery for delivery one or two months hence.
  • He pressed the intercom button, but there was no response.
  • Scanners come with an intercom and speakers, so the operator can hear you at all times.
  • The building features video intercom with code access.
  • intercom does not own or control any electric generation facilities, nor does it have a franchised electric power service area.
  • Dispatches and relays essential information by radio or intercom to units.
British Dictionary definitions for intercom


(informal) an internal telephone system for communicating within a building, an aircraft, etc
Word Origin
C20: short for intercommunication
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 intercom

1940, colloquial shortening of intercommunication (mid-15c., "discussion, conference;" see inter- + communication), which is attested from 1911 in reference to systems of linked telephones.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for intercom



An intercommunication system: Marc yelled into the intercom (1940s+)

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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intercom in Technology
The assembly language for the G-15.
Versions: INTERCOM 101, INTERCOM 1000.
[Listed in CACM 2(5):16, May 1959].
The Free On-line Dictionary of Computing, © Denis Howe 2010
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