poacher vs appropriator

poacher and appropriator both are nouns.

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

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

poacher: someone who hunts or fishes illegally on the property of another
appropriator: someone who takes for his or her own use (especially without permission)

poacher (noun)	appropriator (noun)
small slender fish (to 8 inches) with body covered by bony plates; chiefly of deeper northern Pacific waters	someone who takes for his or her own use (especially without permission)
a cooking vessel designed to poach food (such as fish or eggs)
someone who hunts or fishes illegally on the property of another