preacher vs preacher man

preacher and preacher man both are nouns.

Word	Noun	Adjective	Verb	Adverb
preacher	Yes	No	No	No
preacher man	Yes	No	No	No

As nouns, preacher and preacher man are synonyms defined as:

preacher and preacher man: someone whose occupation is preaching the gospel

Other synonyms of preacher include sermoniser, sermonizer.

preacher (noun)	preacher man (noun)
someone whose occupation is preaching the gospel	someone whose occupation is preaching the gospel