counsel vs counsellor

counsel and counsellor both are nouns.

Word	Noun	Adjective	Verb	Adverb
counsel	Yes	No	Yes	No
counsellor	Yes	No	No	No

As nouns, counsel and counsellor are synonyms defined as:

Other synonyms of counsel include advocate, counselor-at-law, counselor, pleader.

counsel (noun)	counsellor (noun)
something that provides direction or advice as to a decision or course of action	a lawyer who pleads cases in court
a lawyer who pleads cases in court	someone who gives advice about problems
	someone who has supervisory duties at a summer camp

counsel (verb)	counsellor (verb)
give advice to