stir vs go down on

stir is a noun but go down on is not a noun.

Word	Noun	Adjective	Verb	Adverb
stir	Yes	No	Yes	No
go down on	No	No	Yes	No

As verbs, go down on is a hyponym of stir; that is, go down on is a word with a more specific, narrower meaning than stir:

stir (noun)	go down on (noun)
a rapid active commotion
emotional agitation and excitement
a prominent or sensational but short-lived news event

stir (verb)	go down on (verb)
mix or add by stirring	provide sexual gratification through oral stimulation
summon into action or bring into existence, often as if by magic
affect emotionally
stir the feelings, emotions, or peace of
move very slightly
move an implement through
to begin moving
stir feelings in