Quote Originally Posted by Throbert McGee View Post
My impression was that ”складка” can be a "crease" or "wrinkle" in clothing, so I assumed you could also use it for a "crease" in origami. I should've checked Google Image first -- if you search for “сгиб”, some of the hits are illustrations/photos from Russian origami sites!
That's quite natural. The line has only one dimension according to its geometrical definition. You cannot see a line without seeing the place around it.