Open English Wordnet
Nouns
(n)fold, crease, plication, flexure, crimp, bendan angular or rounded shape made by folding“a fold in the napkin”,
“a crease in his trousers”,
“a plication on her blouse”,
“a flexure of the colon”,
“a bend of his elbow” Verbs
(v)wrinkle, ruckle, crease, crinkle, scrunch, scrunch up, crispmake wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; ‘crisp’ is archaic“The dress got wrinkled”,
“crease the paper like this to make a crane”