Definition of intercom in English:

intercom

Line breaks: inter|com
Pronunciation: /ˈɪntəkɒm
 
/

noun

An electrical device allowing one-way or two-way communication: the pilot’s voice comes over the intercom a special intercom linking the theatre with the pathology lab
More example sentences
  • Some systems allow you to use another handset as the intercom instead of the base station.
  • It helps to have more than one communication system like intercoms, telephones and radios, according to Layne.
  • Could it be time to install two-way intercoms in all carriages, so that we can offer a cheery hello to the driver whenever we set foot on a train?

Origin

Second World War: abbreviation of intercommunication.

Definition of intercom in:

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