prickle vs sticker

prickle and sticker both are nouns.

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

As nouns, prickle and sticker are synonyms defined as:

prickle and sticker: a small sharp-pointed tip resembling a spike on a stem or leaf

Other synonyms of prickle include pricker, spikelet, spine, thorn.

prickle (noun)	sticker (noun)
a small sharp-pointed tip resembling a spike on a stem or leaf	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

prickle (verb)	sticker (verb)
make a small hole into, as with a needle or a thorn
cause a stinging or tingling sensation
cause a prickling sensation