talk vs say

talk and say both are nouns.

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

talk (noun)	say (noun)
the act of giving a talk to an audience	the chance to speak
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')

talk (verb)	say (verb)
express in speech	express in words
exchange thoughts; talk with	report or maintain
reveal information	speak, pronounce, or utter in a certain way
use language	express a supposition
deliver a lecture or talk	give instructions to or direct somebody to do something with authority
divulge confidential information or secrets	communicate or express nonverbally
	recite or repeat a fixed text
	indicate
	state as one's opinion or judgement; declare
	utter aloud
	have or contain a certain wording or form