say vs lisp

say and lisp both are nouns.

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

As verbs, lisp is a hyponym of say; that is, lisp is a word with a more specific, narrower meaning than say:

say (noun)	lisp (noun)
the chance to speak	a speech defect that involves pronouncing `s' like voiceless `th' and `z' like voiced `th'

say (verb)	lisp (verb)
express in words	speak with a lisp
report or maintain
speak, pronounce, or utter in a certain way
express a supposition
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