pleat(n = noun.artifact) plait - any of various types of fold formed by doubling fabric back upon itself and then pressing or stitching into shape;
is a kind of bend, crease, crimp, flexure, fold, plication
has particulars: box pleat, inverted pleat, kick pleat, knife pleat, tuck
Derived form verb pleat₁

1.  pleat(v = verb.contact) ruffle - pleat or gather into a ruffle; "ruffle the curtain fabric"
is one way to fold, fold up, turn up
Derived forms noun pleat₁, noun pleating₁
Sample sentences: Somebody ----s something; Something ----s something

2.  pleat(v = verb.contact) plicate - fold into pleats,; "Pleat the cloth"
is one way to fold, fold up, turn up
Sample sentences: Somebody ----s something

   See Plait. [1913 Webster]

pleat, n. & v.
--n. a fold or crease, esp. a flattened fold in cloth doubled upon itself.
--v.tr. make a pleat or pleats in.

Etymology:
ME, var. of PLAIT

N  fold, plicature, plait, pleat, ply, crease, tuck, gather, flexion, flexure, joint, elbow, double, doubling, duplicature, gather, wrinkle, rimple, crinkle, crankle, crumple, rumple, rivel, ruck, ruffle, dog's ear, corrugation, frounce, flounce, lapel, pucker, crow's feet, plication, folded, fluted, pleated.

box pleat, inverted pleat, kick pleat, knife pleat, sunburst pleat, sunray pleat