jar vs vessel

jar and vessel both are nouns.

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

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

jar (noun)	vessel (noun)
a cylindrical vessel, typically used for storing food	a craft designed for water transportation
a sudden jarring impact	an object used as a container (especially for liquids)
the quantity contained in a jar	a tube in which a body fluid circulates

jar (verb)	vessel (verb)
place in a cylindrical vessel
affect in a disagreeable way
move or cause to move with a sudden jerky motion
shock physically
be incompatible; be or come into conflict