thorn vs sticker

thorn and sticker both are nouns.

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

As nouns, thorn and sticker are synonyms defined as:

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

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

thorn (noun)	sticker (noun)
something that causes irritation and annoyance	a short knife with a pointed blade used for piercing or stabbing
a Germanic character of runic origin	an adhesive label
a small sharp-pointed tip resembling a spike on a stem or leaf	a particularly difficult or baffling question or problem
	a small sharp-pointed tip resembling a spike on a stem or leaf