having a wavy margin and rippled surface

stir up (water) so as to form ripples

[ Syn: ripple , ruffle , riffle , cockle ]

occur in soft rounded shapes; The hills rolled past

[ Syn: roll ]

move in a wavy pattern or with a rising and falling motion; The curtains undulated; the waves rolled towards the beach

[ Syn: roll , flap , wave ]

increase and decrease in volume or pitch, as if in waves; The singer's voice undulated'