speak vs say

speak is not a noun while say is a noun.

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

speak (noun)	say (noun)
	the chance to speak

speak (verb)	say (verb)
express in speech	express in words
exchange thoughts; talk with	report or maintain
use language	speak, pronounce, or utter in a certain way
give a speech to	express a supposition
make a characteristic or natural sound	give instructions to or direct somebody to do something with authority
	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