A crease is a fold, wrinkle, or line, like the crease in your perfectly ironed pants or the worried crease in your dad's forehead when he sees you heading out into the snow without a hat and scarf.

A crease can be straight and sharp — think of the creases in a folded paper airplane — or something more like a soft indentation, like the crease in your blankets telling you your cat was just there. It's a verb too: "If you lie on the floor, you'll crease your ball gown!" Etymologists guess that crease comes from crest and its root, which means "to turn or bend."

Definitions of crease
  1. noun
    an angular or rounded shape made by folding
    “a crease in his trousers”
    synonyms: bend, crimp, flexure, fold, plication
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    plait, pleat
    any of various types of fold formed by doubling fabric back upon itself and then pressing or stitching into shape
    kink, twirl, twist
    a sharp bend in a line produced when a line having a loop is pulled tight
    pucker, ruck
    an irregular fold in an otherwise even surface (as in cloth)
    box pleat
    a flat double pleat made by folding under the fabric on either side of it
    inverted pleat
    a box pleat reversed so that the fullness is turned inward
    kick pleat
    pleat in back of a straight skirt to allow ease in walking
    knife pleat
    a single pleat turned in one direction
    a narrow flattened pleat or fold that is stitched in place
    type of:
    angular shape, angularity
    a shape having one or more sharp angles
  2. noun
    a slight depression in the smoothness of a surface
    synonyms: crinkle, furrow, line, seam, wrinkle
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    crow's feet, crow's foot, laugh line
    a wrinkle in the skin at the outer corner of your eyes
    the lines that form patterns on the skin (especially on the fingertips and the palms of the hands and the soles of the feet)
    frown line
    a facial wrinkle associated with frowning
    life line, lifeline, line of life
    a crease on the palm; its length is said by palmists to indicate how long you will live
    heart line, line of heart, love line, mensal line
    a crease on the palm; palmists say it indicates your emotional nature
    line of Saturn, line of destiny, line of fate
    a crease on the palm; palmists say it indicates how successful you will be
    type of:
    depression, impression, imprint
    a concavity in a surface produced by pressing
  3. verb
    make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in
    crease the paper like this to make a crane”
    synonyms: crinkle, crisp, ruckle, scrunch, scrunch up, wrinkle
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    cockle, crumple, knit, pucker, rumple
    to gather something into small wrinkles or folds
    pucker, ruck, ruck up
    become wrinkled or drawn together
    type of:
    fold, fold up, turn up
    bend or lay so that one part covers the other
  4. verb
    make wrinkled or creased
    synonyms: furrow, wrinkle
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    type of:
    fold, fold up, turn up
    bend or lay so that one part covers the other
  5. verb
    become wrinkled or crumpled or creased
    synonyms: crinkle, crumple, rumple, wrinkle
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    type of:
    fold, fold up
    become folded or folded up
  6. verb
    scrape gently
    synonyms: graze, rake
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    touch the surface of lightly
    remove the surface of
    type of:
    touch lightly and briefly
  7. noun
    a Malayan dagger with a wavy blade
    synonyms: creese, kris
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    type of:
    dagger, sticker
    a short knife with a pointed blade used for piercing or stabbing
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