supernumerary vs player

supernumerary and player both are nouns.

Word	Noun	Adjective	Verb	Adverb
supernumerary	Yes	Yes	No	No
player	Yes	No	No	No

As nouns, player is a hypernym of supernumerary; that is, player is a word with a broader meaning than supernumerary:

Other hypernyms of supernumerary include actor, histrion, role player, thespian.

supernumerary (noun)	player (noun)
a minor actor in crowd scenes	a theatrical performer
a person serving no apparent function	a person who participates in or is skilled at some game
	someone who plays a music as a profession
	a person who pursues a number of different social and sexual partners simultaneously
	someone who takes part in an activity

supernumerary (adjective)	player (adjective)
more than is needed, desired, or required