curve vs curliness

curve and curliness both are nouns.

Word	Noun	Adjective	Verb	Adverb
curve	Yes	No	Yes	No
curliness	Yes	No	No	No

As nouns, curliness is a hyponym of curve; that is, curliness is a word with a more specific, narrower meaning than curve:

Other hyponyms of curve include waviness, straightness, spoke misalignment.

curve (noun)	curliness (noun)
a pitch of a baseball that is thrown with spin so that its path curves as it approaches the batter	(of hair) a tendency to curl
curved segment (of a road or river or railroad track etc.)
the property possessed by the curving of a line or surface
a line on a graph representing data
the trace of a point whose direction of motion changes

curve (verb)	curliness (verb)
form a curl, curve, or kink
turn sharply; change direction abruptly
form an arch or curve
bend or cause to bend
extend in curves and turns