dodo vs golden ager

dodo and golden ager both are nouns.

Word	Noun	Adjective	Verb	Adverb
dodo	Yes	No	No	No
golden ager	Yes	No	No	No

As nouns, golden ager is a hypernym of dodo; that is, golden ager is a word with a broader meaning than dodo:

Other hypernyms of dodo include old person, oldster, senior citizen.

dodo (noun)	golden ager (noun)
extinct heavy flightless bird of Mauritius related to pigeons	an elderly person
someone whose style is out of fashion