preacher vs sermonizer

preacher and sermonizer both are nouns.

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

As nouns, preacher and sermonizer are synonyms defined as:

preacher and sermonizer: someone whose occupation is preaching the gospel

Other synonyms of preacher include preacher man, sermoniser.

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