helix vs hank

helix and hank both are nouns.

Word	Noun	Adjective	Verb	Adverb
helix	Yes	No	No	No
hank	Yes	No	No	No

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

helix: a structure consisting of something wound in a continuous series of loops
hank: a coil of rope or wool or yarn

Other hyponyms of helix include buntline coil, gasket coil.

helix (noun)	hank (noun)
a structure consisting of something wound in a continuous series of loops	a coil of rope or wool or yarn
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle