poacher vs vessel

poacher and vessel both are nouns.

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

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

Other hypernyms of poacher include cooking utensil, cookware.

poacher (noun)	vessel (noun)
small slender fish (to 8 inches) with body covered by bony plates; chiefly of deeper northern Pacific waters	a craft designed for water transportation
a cooking vessel designed to poach food (such as fish or eggs)	an object used as a container (especially for liquids)
someone who hunts or fishes illegally on the property of another	a tube in which a body fluid circulates