anonym vs stage name

anonym and stage name both are nouns.

Word	Noun	Adjective	Verb	Adverb
anonym	Yes	No	No	No
stage name	Yes	No	No	No

As nouns, stage name is a hyponym of anonym; that is, stage name is a word with a more specific, narrower meaning than anonym:

anonym: a fictitious name used when the person performs a particular social role
stage name: the pseudonym of an actor

Other hyponyms of anonym include nom de plume, pen name, hagionym.

anonym (noun)	stage name (noun)
a fictitious name used when the person performs a particular social role	the pseudonym of an actor