| Oscillate 1. (v. i.) To move backward and forward; to vibrate; to swing; to sway; as, an oscillating fan. 2. (v. i.) To vary or fluctuate between fixed limits; to act or move in a fickle or fluctuating manner; to change repeatedly, back and forth. Thesaurus Entries alternate, back and fill, be here again, bob, bobble, careen, change, circle, coggle, come again, come and go, come around, come round, come round again, come up again, cycle, dangle, dither, ebb and flow, equivocate, flounder, fluctuate, flutter, go through phases, hem and haw, intermit, librate, lurch, nutate, pendulate, pitch, pulsate, pulse, reappear, recur, reel, reoccur, repeat, resonate, return, revolve, ring the changes, rock, roll, roll around, rotate, seesaw, shake, shift, shilly-shally, shuffle, stagger, swag, sway, swing, teeter, teeter-totter, tergiversate, toss, totter, turn, undulate, vacillate, vary, vibrate, wag, waggle, wave, waver, wax and wane, wheel, wheel around, wobble |