minstrel vs singer

minstrel and singer both are nouns.

Word	Noun	Adjective	Verb	Adverb
minstrel	Yes	No	Yes	No
singer	Yes	No	No	No

As nouns, singer is a hypernym of minstrel; that is, singer is a word with a broader meaning than minstrel:

Other hypernyms of minstrel include vocaliser, vocalist, vocalizer.

minstrel (noun)	singer (noun)
a singer of folk songs	a person who sings
a performer in a minstrel show

minstrel (verb)	singer (verb)
celebrate by singing, in the style of minstrels