crumple vs cockle

crumple is not a noun while cockle is a noun.

Word	Noun	Adjective	Verb	Adverb
crumple	No	No	Yes	No
cockle	Yes	No	Yes	No

As verbs, crumple and cockle are synonyms defined as:

Other synonyms of crumple include knit, pucker, rumple.

crumple (noun)	cockle (noun)
	common edible, burrowing European bivalve mollusk that has a strong, rounded shell with radiating ribs
	common edible European bivalve

crumple (verb)	cockle (verb)
become wrinkled or crumpled or creased	to gather something into small wrinkles or folds
to gather something into small wrinkles or folds	stir up (water) so as to form ripples
fold or collapse
fall apart