vocaliser vs Kate Smith

vocaliser and Kate Smith both are nouns.

Word	Noun	Adjective	Verb	Adverb
vocaliser	Yes	No	No	No
Kate Smith	Yes	No	No	No

vocaliser (noun)	Kate Smith (noun)
a person who sings	United States singer noted for her rendition of patriotic songs (1909-1986)
an organism that can utter vocal sounds