prevailing party vs litigator

prevailing party and litigator both are nouns.

Word	Noun	Adjective	Verb	Adverb
prevailing party	Yes	No	No	No
litigator	Yes	No	No	No

As nouns, litigator is a hypernym of prevailing party; that is, litigator is a word with a broader meaning than prevailing party:

prevailing party: the party in a lawsuit who obtains a judgment in their own favor
litigator: (law) a party to a lawsuit; someone involved in litigation

Other hypernyms of prevailing party include litigant.

prevailing party (noun)	litigator (noun)
the party in a lawsuit who obtains a judgment in their own favor	(law) a party to a lawsuit; someone involved in litigation