predator vs beast

predator and beast both are nouns.

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

As nouns, beast is a hypernym of predator; that is, beast is a word with a broader meaning than predator:

Other hypernyms of predator include animal, animate being, brute, creature, fauna.

predator (noun)	beast (noun)
any animal that lives by preying on other animals	a living organism characterized by voluntary movement
someone who attacks in search of booty	a cruelly rapacious person