From Longman Dictionary of Contemporary EnglishRelated topics: Communicationsintercomin‧ter‧com /ˈɪntəkɒm $ ˈɪntərkɑːm/ noun [countable]TCTTAa communication system by which people in different parts of a building, aircraft etc can speak to each otherThe pilot’s voice came over the intercom.Examples from the Corpusintercom• No intercom, nor any information about what those needing assistance should do.• On the suddenly silentintercom, no explanationoffered, still less an apology.• However, the fail out alarm had been knocked out and the intercom was working badly.• I clicked in the intercom and asked the crewchief and the gunner if they were ready.• The Minister's secretarybuzzed him on the intercom.• We all crackedjokes over the intercom and talked about what we were going to do.• Most of them shouted over the intercom at every repeatedmistake.• The static over the intercom was terrible.over the intercom• We all cracked jokes over the intercom and talked about what we were going to do.• Most of them shouted over the intercom at every repeated mistake.• The static over the intercom was terrible.• "Welcome to St. Petersburg, " said a voiceover the intercom.Originintercom(1900-2000)intercommunication (system)