troubadour vs vocaliser

troubadour and vocaliser both are nouns.

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

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

Other hypernyms of troubadour include singer, vocalist, vocalizer.

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