pleat /pliːt/noun 4verb 2forms 3 noun4 •a fold made by turning cloth or other material back over itself and pressing or sewing it in place, often one of several in a skirt •A similar fold in a filter, lampshade, or various other products. •a length of hair or other material made by crossing three or more strands over and under one another in turn, also called a braid •A fold in an organ, usually a longitudinal fold in a long leaf such as that of palmetto, lending it stiffness. verb2 •To form one or more pleats in a piece of fabric or a garment. •To plait. formspleated · pleating · pleats