nominating address vs oratory

nominating address and oratory both are nouns.

Word	Noun	Adjective	Verb	Adverb
nominating address	Yes	No	No	No
oratory	Yes	No	No	No

As nouns, oratory is a hypernym of nominating address; that is, oratory is a word with a broader meaning than nominating address:

nominating address: an address (usually at a political convention) proposing the name of a candidate to run for election
oratory: addressing an audience formally (usually a long and rhetorical address and often pompous)

nominating address (noun)	oratory (noun)
an address (usually at a political convention) proposing the name of a candidate to run for election	addressing an audience formally (usually a long and rhetorical address and often pompous)