From WordNet (r) 3.0 (2006):
crease
n 1: an 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"
[syn: fold, crease, plication, flexure, crimp,
bend]
2: a slight depression in the smoothness of a surface; "his face
has many lines"; "ironing gets rid of most wrinkles" [syn:
wrinkle, furrow, crease, crinkle, seam, line]
3: a Malayan dagger with a wavy blade [syn: kris, creese,
crease]
v 1: make wrinkles or creases on a smooth surface; make a
pressed, folded or wrinkled line in; "The dress got
wrinkled"; "crease the paper like this to make a crane"
[syn: wrinkle, ruckle, crease, crinkle, scrunch,
scrunch up, crisp]
2: make wrinkled or creased; "furrow one's brow" [syn: furrow,
wrinkle, crease]
3: scrape gently; "graze the skin" [syn: graze, crease,
rake]
4: become wrinkled or crumpled or creased; "This fabric won't
wrinkle" [syn: rumple, crumple, wrinkle, crease,
crinkle]