Squawk box and Speaker system

Squawk box noun - The loudspeaker on an intercom or public address system.

Speaker system and squawk box are semantically related. In some cases you can use "Speaker system" instead a noun phrase "Squawk box".

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

Squawk box and speaker system are semantically related. Sometimes you can replace phrase "Squawk box" with "Speaker system", this phrases are similar.