The word “crinkle” can be used as both a verb and a noun.
As a verb, “crinkle” means to form small folds or wrinkles in something, typically a soft material like paper or fabric. For example, you might crinkle a piece of paper by squeezing it in your hand.
As a noun, “crinkle” refers to a small fold, wrinkle, or crease in a surface. It often describes the texture or appearance of something that has been wrinkled or pressed.
Overall, it conveys the idea of a slight, irregular surface change.