precrease

/priːˈkriːs/
verb
  1. To create a fold or crease in something in advance, especially in fabric or paper.
    • He learned to precrease the paper along the dotted line before making the final fold.
    • Before sewing the hem, she decided to precrease the fabric with an iron.
    • The machine can precrease cardboard boxes so they fold easily later.
Antonyms
noun
  1. A fold or crease that has been made in advance.
    • The precrease on the shirt made it easy to fold neatly.
    • She followed the precrease in the pattern to cut the fabric accurately.
    • The envelope had a precrease so you could seal it without effort.
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