animal vs sitter

animal and sitter both are nouns.

Word	Noun	Adjective	Verb	Adverb
animal	Yes	Yes	No	No
sitter	Yes	No	No	No

animal (noun)	sitter (noun)
a living organism characterized by voluntary movement	a domestic hen ready to brood
	a person engaged to care for children when the parents are not home
	an organism (person or animal) that sits
	a person who poses for a painter or sculptor

animal (adjective)	sitter (adjective)
marked by the appetites and passions of the body