gregarious vs beast

gregarious is not a noun while beast is a noun.

Word	Noun	Adjective	Verb	Adverb
gregarious	No	Yes	No	No
beast	Yes	No	No	No

gregarious (noun)	beast (noun)
	a living organism characterized by voluntary movement
	a cruelly rapacious person

gregarious (adjective)	beast (adjective)
(of animals) tending to form a group with others of the same species
(of plants) growing in groups that are close together
instinctively or temperamentally seeking and enjoying the company of others