interphone
in·terp·hone
noun
1.
a telephonic intercommunication system linking different rooms in a building or ship etc
Origin
From inter- + phone.
Related words
Broader terms
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.