salutatory vs salutatory oration

salutatory and salutatory oration both are nouns.

Word	Noun	Adjective	Verb	Adverb
salutatory	Yes	No	No	No
salutatory oration	Yes	No	No	No

As nouns, salutatory and salutatory oration are synonyms defined as:

salutatory and salutatory oration: an opening or welcoming statement (especially one delivered at graduation exercises)

Other synonyms of salutatory include salutatory address.

salutatory (noun)	salutatory oration (noun)
an opening or welcoming statement (especially one delivered at graduation exercises)	an opening or welcoming statement (especially one delivered at graduation exercises)