verb | noun
foldfold1 /foʊld/ verb 
► fold to bend a piece of paper or cloth so that one part covers another part: Take the clothes out of the dryer and fold them. Fold the square of paper in half (=so that one half covers the other half).
► wrinkle to make messy folds and lines in a piece of clothing or cloth, usually accidentally: My shirt was on the bed, and the cat sat on it and wrinkled it.
► crease to make a line on a piece of clothing or paper by folding or pressing it, deliberately or accidentally: She didn't sit down because she didn't want to crease her dress.
► crumple also crumple up to crush a piece of paper into many small folds and make it smaller: He crumpled the letter into a ball and threw it into the wastebasket.
GRAMMAR CHECK: foldThese verbs can be made into adjectives - wrinkled, creased, and crumpled: a wrinkled shirt | Her dress was creased. | He lay on the crumpled sheets. verb | noun
foldfold2 /foʊld/ noun ► fold the place in paper or cloth where it has been folded, or the paper or material around this place: Bend the cardboard in half and cut along the fold. The boy hid his face in the folds of his mother’s skirt.
► wrinkle a small messy fold on a piece of clothing or paper. You do not usually want wrinkles on something: You'll need an iron to get rid of the wrinkles in your shirt. ➔ If a piece of clothing has wrinkles, it is more usual to say: My shirt is wrinkled.You can also use wrinkles to talk about lines on your face that you get when you are old: I have gray hair and wrinkles now.
► crease a deep line on a piece of clothing or paper, where it has been folded or pressed by an iron: The pants have a sharp crease along the leg.