shrimper vs vessel

shrimper and vessel both are nouns.

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

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

Other hypernyms of shrimper include watercraft.

shrimper (noun)	vessel (noun)
a vessel engaged in shrimping	a craft designed for water transportation
	an object used as a container (especially for liquids)
	a tube in which a body fluid circulates