A line or mark made by folding or doubling any pliable substance; hence, a similar mark, however produced.(noun)
source: webster1913
The combination of four lines forming a rectangle inclosing either goal, or the inclosed space itself, within which no attacking player is allowed unless the ball is there; -- called also goal crease.(noun)
source: webster1913
verb (v)
make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in(verb.contact)
Example: Crease the paper like this to make a crane.