THESAURUS
tsunami
apoplexy, billow, bore, breakers, breakup, cataclysm, chop, choppiness, chopping sea, climax, comb, comber, convulsion, diastrophism, dirty water, disaster, eagre, fit, gravity wave, ground swell, heave, heavy sea, heavy swell, lift, lop, overthrow, paroxysm, peak, popple, quake, riffle, ripple, rise, roll, roller, rough water, scend, sea, send, spasm, stroke, surf, surge, swell, temblor, tidal bore, tidal wave, tide wave, trough, undulation, upheaval, water wave, wave, wavelet, white horses, whitecaps