churn vs stir

churn and stir both are nouns.

Word	Noun	Adjective	Verb	Adverb
churn	Yes	No	Yes	No
stir	Yes	No	Yes	No

As verbs, stir is a hypernym of churn; that is, stir is a word with a broader meaning than churn:

churn (noun)	stir (noun)
a vessel in which cream is agitated to separate butterfat from buttermilk	a rapid active commotion
	emotional agitation and excitement
	a prominent or sensational but short-lived news event

churn (verb)	stir (verb)
stir (cream) vigorously in order to make butter	mix or add by stirring
be agitated	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