curl vs curling

curl and curling both are nouns.

Word	Noun	Adjective	Verb	Adverb
curl	Yes	No	Yes	No
curling	Yes	Yes	No	No

curl (noun)	curling (noun)
lock of hair in the shape of a spiral or curl	a game played on ice in which heavy stones with handles are slid toward a target
a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

curl (adjective)	curling (adjective)
	(of hair) making curls or having been made to curl

curl (verb)	curling (verb)
form a curl, curve, or kink
play the Scottish game of curling
twist or roll into coils or ringlets
wind around something in coils or loops
shape one's body into a curl