monitor speaker vs speaker

monitor speaker and speaker both are nouns.

Word	Noun	Adjective	Verb	Adverb
monitor speaker	Yes	No	No	No
speaker	Yes	No	No	No

As nouns, speaker is a hypernym of monitor speaker; that is, speaker is a word with a broader meaning than monitor speaker:

monitor speaker: One of the speakers on stage pointing towards the performers to help them hear themselves.
speaker: electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

Other hypernyms of monitor speaker include loudspeaker, loudspeaker system, speaker system, speaker unit.

monitor speaker (noun)	speaker (noun)
One of the speakers on stage pointing towards the performers to help them hear themselves.	electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance
	someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)