spiral vs curve

spiral and curve both are nouns.

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

As nouns, curve is a hypernym of spiral; that is, curve is a word with a broader meaning than spiral:

spiral: a plane curve traced by a point circling about the center but at increasing distances from the center
curve: the trace of a point whose direction of motion changes

Other hypernyms of spiral include curved shape.

As nouns, curve is a hypernym of spiral; that is, curve is a word with a broader meaning than spiral:

spiral: a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
curve: the trace of a point whose direction of motion changes

Other hypernyms of spiral include curved shape.

As verbs, curve is a hypernym of spiral; that is, curve is a word with a broader meaning than spiral:

Other hypernyms of spiral include twist, wind.

spiral (noun)	curve (noun)
flying downward in a helical path with a large radius	a pitch of a baseball that is thrown with spin so that its path curves as it approaches the batter
a structure consisting of something wound in a continuous series of loops	curved segment (of a road or river or railroad track etc.)
ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center	the property possessed by the curving of a line or surface
a continuously accelerating change in the economy	a line on a graph representing data
a plane curve traced by a point circling about the center but at increasing distances from the center	the trace of a point whose direction of motion changes
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle

spiral (adjective)	curve (adjective)
in the shape of a coil

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