THESAURUS
undulate
alternate, bank, be here again, be poised, billow, brandish, break, circle, comb, come again, come and go, come around, come round, come round again, come up again, crab, crash, cycle, dash, dip, ebb and flow, feather, fishtail, flap, flaunt, float, flourish, flutter, fly, heave, intermit, lift, loop, oscillate, peak, plow, popple, porpoise, pull out, pull up, pulsate, pulse, push down, reappear, recur, reoccur, repeat, return, revolve, rise, rise and fall, roll, roll around, rotate, scend, send, shake, sideslip, skid, slidder, smash, snake, spin, spiral, stunt, surge, swell, swing, toss, turn, wag, wave, wheel, wheel around, wield, wigwag, yaw
ROGET THESAURUS
undulate
Convolution
VB
be convoluted, wind, twine, turn and twist, twirl, wave,
undulate, meander, inosculate, entwine, intwine, twist, coil, roll, wrinkle, curl, crisp, twill, frizzle, crimp, crape, indent, scollop, scallop, wring, intort, contort, wreathe.
Oscillation
VB
oscillate, vibrate, librate, alternate,
undulate, wave, rock, swing, pulsate, beat, wag, waggle, nod, bob, courtesy, curtsy, tick, play, wamble, wabble, dangle, swag, fluctuate, dance, curvet, reel, quake, quiver, quaver, shake, flicker, wriggle, roll, toss, pitch, flounder, stagger, totter, move up and down, bob up and down, pass and repass, ebb and flow, come and go, vacillate, teeter, brandish, shake, flourish.