Definition of creases:
(n) :
A line or mark made by folding or doubling any pliable substance; hence, a similar mark, however produced.
(v) :
(transitive) To make a crease in; to wrinkle.
(v) :
(intransitive) To undergo creasing; to form wrinkles.
(n) :
(cricket) One of the white lines drawn on the pitch to show different areas of play; especially the popping crease, but also the bowling crease and the return crease.
(n) :
(ice hockey, handball) The area in front of each goal.
(n) :
(lacrosse) The circle around the goal, which no offensive players may enter during play, unless after scoring.