distorted shape vs knot

distorted shape and knot both are nouns.

Word	Noun	Adjective	Verb	Adverb
distorted shape	Yes	No	No	No
knot	Yes	No	Yes	No

As nouns, knot is a hyponym of distorted shape; that is, knot is a word with a more specific, narrower meaning than distorted shape:

Other hyponyms of distorted shape include contortion, crookedness, torsion, tortuosity, tortuousness, buckle, warp, gnarl.

distorted shape (noun)	knot (noun)
a shape resulting from distortion	a sandpiper that breeds in the Arctic and winters in the Southern Hemisphere
	any of various fastenings formed by looping and tying a rope (or cord) upon itself or to another rope or to another object
	soft lump or unevenness in a yarn; either an imperfection or created by design
	a tight cluster of people or things
	something twisted and tight and swollen
	a hard cross-grained round piece of wood in a board where a branch emerged
	(of ships and wind) a unit of speed equal to one nautical mile per hour or about 1.15 statute miles per hour

distorted shape (verb)	knot (verb)
	tie or fasten into a knot
	tangle or complicate
	make into knots; make knots out of