tweeter vs speaker

tweeter and speaker both are nouns.

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

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

tweeter: a loudspeaker that reproduces higher audio frequency sounds
speaker: electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance

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

tweeter (noun)	speaker (noun)
a loudspeaker that reproduces higher audio frequency sounds	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)