poniard vs sticker

poniard and sticker both are nouns.

Word	Noun	Adjective	Verb	Adverb
poniard	Yes	No	Yes	No
sticker	Yes	No	No	No

As nouns, sticker is a hypernym of poniard; that is, sticker is a word with a broader meaning than poniard:

Other hypernyms of poniard include dagger.

poniard (noun)	sticker (noun)
a dagger with a slender blade	a short knife with a pointed blade used for piercing or stabbing
	an adhesive label
	a particularly difficult or baffling question or problem
	a small sharp-pointed tip resembling a spike on a stem or leaf

poniard (verb)	sticker (verb)
stab with a poniard