intercom

in-ter-com · noun

imported

Definitions

noun

  1. 1.

    An electrical device for communication between people in different rooms or areas of a building.

  2. 2.

    A system of such devices.

Forms

plural: intercoms

Related words

See also: buzzer, communication, speaker
Synonyms: interphone, speakerphone

Etymology

Shortened from "intercommunication system" or "intercommunicator." First used in the 1940s, especially in aviation and military contexts.