predator vs attacker

predator and attacker both are nouns.

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

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

Other hypernyms of predator include aggressor, assailant, assaulter.

predator (noun)	attacker (noun)
any animal that lives by preying on other animals	someone who attacks
someone who attacks in search of booty