troubadour vs vocalizer

troubadour and vocalizer both are nouns.

Word	Noun	Adjective	Verb	Adverb
troubadour	Yes	No	No	No
vocalizer	Yes	No	No	No

As nouns, vocalizer is a hypernym of troubadour; that is, vocalizer is a word with a broader meaning than troubadour:

Other hypernyms of troubadour include singer, vocaliser, vocalist.

troubadour (noun)	vocalizer (noun)
a singer of folk songs	a person who sings
	an organism that can utter vocal sounds