pleader vs counsellor

pleader and counsellor both are nouns.

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

As nouns, pleader and counsellor are synonyms defined as:

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

pleader (noun)	counsellor (noun)
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