waitress vs bunny girl

waitress and bunny girl both are nouns.

Word	Noun	Adjective	Verb	Adverb
waitress	Yes	No	Yes	No
bunny girl	Yes	No	No	No

As nouns, bunny girl is a hyponym of waitress; that is, bunny girl is a word with a more specific, narrower meaning than waitress:

waitress: a woman waiter
bunny girl: a young waitress in a nightclub whose costume includes the tail and ears of a rabbit

Other hyponyms of waitress include bunny.

waitress (noun)	bunny girl (noun)
a woman waiter	a young waitress in a nightclub whose costume includes the tail and ears of a rabbit

waitress (verb)	bunny girl (verb)
serve as a waiter or waitress in a restaurant