pricker vs prickle

pricker and prickle both are nouns.

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

As nouns, pricker and prickle are synonyms defined as:

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

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

pricker (noun)	prickle (noun)
an awl for making small holes for brads or small screws	a small sharp-pointed tip resembling a spike on a stem or leaf
a small sharp-pointed tip resembling a spike on a stem or leaf

pricker (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