crimp vs ruck

crimp and ruck both are nouns.

Word	Noun	Adjective	Verb	Adverb
crimp	Yes	No	Yes	No
ruck	Yes	No	Yes	No

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

Other hyponyms of crimp include plait, pleat, kink, twirl, twist, pucker, accordion fold, concertina fold, z-fold, zig-zag fold.

crimp (noun)	ruck (noun)
a lock of hair that has been artificially waved or curled	a crowd especially of ordinary or undistinguished persons or things
someone who tricks or coerces men into service as sailors or soldiers	an irregular fold in an otherwise even surface (as in cloth)
an angular or rounded shape made by folding

crimp (verb)	ruck (verb)
curl tightly	become wrinkled or drawn together
make ridges into by pinching together