appellant vs litigant

appellant and litigant both are nouns.

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

As nouns, litigant is a hypernym of appellant; that is, litigant is a word with a broader meaning than appellant:

Other hypernyms of appellant include litigator.

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

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