churn vs vessel

churn and vessel both are nouns.

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

As nouns, vessel is a hypernym of churn; that is, vessel is a word with a broader meaning than churn:

churn: a vessel in which cream is agitated to separate butterfat from buttermilk
vessel: an object used as a container (especially for liquids)

churn (noun)	vessel (noun)
a vessel in which cream is agitated to separate butterfat from buttermilk	a craft designed for water transportation
	an object used as a container (especially for liquids)
	a tube in which a body fluid circulates

churn (verb)	vessel (verb)
stir (cream) vigorously in order to make butter
be agitated