undergo or cause to undergo a change in the surface

arrange in a particular way

stir up (water) so as to form ripples

spread out or open from a closed or folded state

the act of folding

the act of folding

covering that is folded over to protect the contents

an angular or rounded shape made by folding

fold into pleats

make wrinkled or creased

make wrinkles or creases on a smooth surface; make a pressed, folded or wrinkled line in; `crisp' is archaic

fold into ridges

pleat or gather into a ruffle