• move one's hand to and fro in greeting or as a signal

Synonyms: gesture, gesticulate, signal, sign, beckon, indicate, motion, nod, bid

• move to and fro with a swaying motion while remaining fixed to one point

Synonyms: ripple, flutter, undulate, stir, flap, sway, swing, waft, shake, quiver, oscillate, move

• style (hair) so that it curls slightly

• a long body of water curling into an arched form and breaking on the shore

Synonyms: breaker, billow, roller, comber, ripple, white horse, white cap

• a sudden occurrence of or increase in a phenomenon, feeling, or emotion

Synonyms: flow, rush, surge, flood, stream, swell, tide, deluge, torrent, spate, billow, surge, rush, ripple, spasm, thrill, frisson, shiver, tingle, stab, dart

• a gesture or signal made by moving one's hand to and fro

Synonyms: gesture, gesticulation, hand movement

• a slightly curling lock of hair

Synonyms: curl, kink, corkscrew, crimp, twist, twirl, ringlet, frizz, coil, loop, undulation

• a periodic disturbance of the particles of a substance which may be propagated without net movement of the particles, such as in the passage of undulating motion, heat, or sound

Synonyms: ripple, vibration, oscillation, undulation