THESAURUS
crease, creased, crimp, crimped, crisp, dog-ear, dog-eared, double, double over, doubled, enfold, flexible, flounce, flounced, flute, fluted, fold, fold over, foldable, folded, folding, frill, gather, gathered, infold, interfold, lap over, plait, plaited, plat, pleat, pleated, pliable, plicated, plicatile, ply, quill, quilled, ruff, ruffle, ruffled, tuck, tucked, turn over, twill, twilled
ROGET THESAURUS
Fold
VB
fold, double,
plicate, plait, crease, wrinkle, crinkle, crankle, curl, cockle up, cocker, rimple, rumple, flute, frizzle, frounce, rivel, twill, corrugate, ruffle, crimple, crumple, pucker, turn down, double down, down under, tuck, ruck, hem, gather.