animal vs beast

animal and beast both are nouns.

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

As nouns, animal and beast are synonyms defined as:

Other synonyms of animal include animate being, brute, creature, fauna.

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

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