reef vs reefy

reef is a noun but reefy is not a noun.

Word	Noun	Adjective	Verb	Adverb
reef	Yes	No	Yes	No
reefy	No	Yes	No	No

reef (noun)	reefy (noun)
one of several strips across a sail that can be taken in or rolled up to lessen the area of the sail that is exposed to the wind
a submerged ridge of rock or coral near the surface of the water

reef (adjective)	reefy (adjective)
	full of submerged reefs or sandbanks or shoals

reef (verb)	reefy (verb)
roll up (a portion of a sail) in order to reduce its area
reduce (a sail) by taking in a reef
lower and bring partially inboard