bargainer vs bargain

bargainer and bargain both are nouns.

Word	Noun	Adjective	Verb	Adverb
bargainer	Yes	No	No	No
bargain	Yes	No	Yes	No

bargainer (noun)	bargain (noun)
someone who purchases and maintains an inventory of goods to be sold	an agreement between parties (usually arrived at after discussion) fixing obligations of each
negotiator of the terms of a transaction	an advantageous purchase

bargainer (verb)	bargain (verb)
	come to terms; arrive at an agreement
	negotiate the terms of an exchange