THESAURUS
Pleat
accordion pleat, aqueduct, box pleat, canal, canalization, canalize, carve, chamfer, channel, chisel, corrugate, crack, crease, crimp, crisp, cut, dado, dike, ditch, dog-ear, double, double over, enfold, engrave, entrenchment, flounce, flute, fold, fold over, fosse, frill, furrow, gash, gather, goffer, gouge, groove, gully, gutter, ha-ha, incise, infold, interfold, kennel, knife pleat, lap over, moat, plait, plat, plicate, plow, ply, quill, rabbet, rifle, ruff, ruffle, rut, score, scratch, slit, streak, striate, sunk fence, trench, trough, tuck, turn over, twill, wrinkle
ROGET THESAURUS
Pleat
Fold
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.