Intercom speaker and Loudspeaker system

Intercom speaker noun - The loudspeaker on an intercom or public address system.

Loudspeaker system and intercom speaker are semantically related. In some cases you can use "Loudspeaker system" instead a noun phrase "Intercom speaker".

Loudspeaker system noun - Electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance.

Intercom speaker and loudspeaker system are semantically related. Sometimes you can replace phrase "Intercom speaker" with "Loudspeaker system", this phrases are similar.