thorn vs spikelet

thorn and spikelet both are nouns.

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

As nouns, thorn and spikelet are synonyms defined as:

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

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

thorn (noun)	spikelet (noun)
something that causes irritation and annoyance	a small sharp-pointed tip resembling a spike on a stem or leaf
a Germanic character of runic origin
a small sharp-pointed tip resembling a spike on a stem or leaf