squawk box

English Thesaurus

1. the loudspeaker on an intercom or public address system (noun.artifact)

hypernym	:	loudspeaker, loudspeaker system, speaker, speaker system, speaker unit,
definition	:	electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance (noun.artifact)

part meronym	:	intercom, intercommunication system,
definition	:	a communication system linking different rooms within a building or ship etc (noun.artifact)