whirlpool, charybdis, maelstrom, ado, back stream, backflow, backwash, backwater, bustle, centrifugate, centrifuge, countercurrent, counterflow, dizzy round, eddy, flurry, furore, fuss, gulf, gurge , gyre, maelstrom, pirouette, pother, purl, rat race, reel, refluence, reflux, regurgitation, round, spin, surge, swirl, turn, twirl, vortex, wheel, whirl, whirligig, whirlwind, whorl