elocutionist vs orator

elocutionist and orator both are nouns.

Word	Noun	Adjective	Verb	Adverb
elocutionist	Yes	No	No	No
orator	Yes	No	No	No

As nouns, orator is a hypernym of elocutionist; that is, orator is a word with a broader meaning than elocutionist:

elocutionist: a public speaker trained in voice production and gesture and delivery
orator: a person who delivers a speech or oration

Other hypernyms of elocutionist include public speaker, rhetorician, speechifier, speechmaker.

elocutionist (noun)	orator (noun)
a public speaker trained in voice production and gesture and delivery	a person who delivers a speech or oration