sticker vs prickle

sticker and prickle both are nouns.

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

As nouns, sticker and prickle are synonyms defined as:

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

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

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

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