vocalizer vs soprano

vocalizer and soprano both are nouns.

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

As nouns, soprano is a hyponym of vocalizer; that is, soprano is a word with a more specific, narrower meaning than vocalizer:

vocalizer (noun)	soprano (noun)
a person who sings	the pitch range of the highest female voice
an organism that can utter vocal sounds	the highest female voice; the voice of a boy before puberty
	a female singer with the highest vocal range of all the voice type

vocalizer (adjective)	soprano (adjective)
	having or denoting a high range