rhetorician vs orator

rhetorician and orator both are nouns.

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

As nouns, rhetorician and orator are synonyms defined as:

Other synonyms of rhetorician include public speaker, speechifier, speechmaker.

rhetorician (noun)	orator (noun)
a person who delivers a speech or oration	a person who delivers a speech or oration