OD, asphyxiate, baptize, be clobbered, be felled, be killed, be poleaxed, be staggered, be stricken, bottle up, burke, bury, censor, choke, choke off, clamp down on, come to grief, cork, cork up, crack down on, crush, damp down, deluge, dip, douse, drench, duck, dunk, engulf, extinguish, famish, float, flood, flow on, founder, gag, garrote, have a mishap, hold down, immerge, immerse, inundate, jump on, keep down, keep under, kill, knock over, merge, muzzle, overcome, overflow, overpower, overwhelm, plunge in water, pour on, pour water on, prostrate, put down, quash, quell, quench, rain, repress, run aground, shut down on, silence, sink, sit down on, sit on, sluice, smash, smother, soak, sop, souse, squash, squelch, stanch, starve, stifle, stop the breath, strangle, stultify, subdue, submerge, submerse, suffer a misfortune, suffocate, suppress, swamp, throttle, wet, whelm