talker vs talk

talker and talk both are nouns.

Word	Noun	Adjective	Verb	Adverb
talker	Yes	No	No	No
talk	Yes	No	Yes	No

talker (noun)	talk (noun)
someone who expresses in language; someone who talks (especially someone who delivers a public speech or someone especially garrulous)	the act of giving a talk to an audience
	an exchange of ideas via conversation
	idle gossip or rumor
	a speech that is open to the public
	discussion; (`talk about' is a less formal alternative for `discussion of')

talker (verb)	talk (verb)
	express in speech
	exchange thoughts; talk with
	reveal information
	use language
	deliver a lecture or talk
	divulge confidential information or secrets