half-breed vs fauna

half-breed and fauna both are nouns.

Word	Noun	Adjective	Verb	Adverb
half-breed	Yes	Yes	No	No
fauna	Yes	No	No	No

half-breed (noun)	fauna (noun)
an offensive term for an offspring of parents of different racial group (especially of Caucasian and American Indian ancestry)	a living organism characterized by voluntary movement
	all the animal life in a particular region or period

half-breed (adjective)	fauna (adjective)
(of animals) having only one purebred parent