remains vs corpse

remains and corpse both are nouns.

Word	Noun	Adjective	Verb	Adverb
remains	Yes	No	No	No
corpse	Yes	No	No	No

As nouns, remains and corpse are synonyms defined as:

Other synonyms of remains include cadaver, clay, stiff.

remains (noun)	corpse (noun)
the dead body of a human being	the dead body of a human being
any object that is left unused or still extant
a relic that has been excavated from the soil