litigator vs appellant

litigator and appellant both are nouns.

Word	Noun	Adjective	Verb	Adverb
litigator	Yes	No	No	No
appellant	Yes	Yes	No	No

As nouns, appellant is a hyponym of litigator; that is, appellant is a word with a more specific, narrower meaning than litigator:

Other hyponyms of litigator include defendant, suspect, plaintiff in error, filer, complainant, plaintiff, prevailing party.

litigator (noun)	appellant (noun)
(law) a party to a lawsuit; someone involved in litigation	the party who appeals a decision of a lower court

litigator (adjective)	appellant (adjective)
	of or relating to or taking account of appeals (usually legal appeals)