#1
crumple v. [
crumble, tumble, break down, collapse] fall apart; "the building crumbled after the explosion"; "Negotiations broke down"
. wn #2
crumple v. [
buckle] fold or collapse; "His knees buckled"
. wn #3
crumple v. [
pucker, rumple, cockle, knit] to gather something into small wrinkles or folds; "She puckered her lips"
. wn #4
crumple v. [
rumple, wrinkle, crease, crinkle] become wrinkled or crumpled or creased; "This fabric won't wrinkle"
. wn