curl vs curler

curl and curler both are nouns.

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

curl (noun)	curler (noun)
lock of hair in the shape of a spiral or curl	a mechanical device consisting of a cylindrical tube around which the hair is wound to curl it
a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

curl (verb)	curler (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