abate ablate bate be eaten away buy it cascade cash in cataract check in check out collapse come down consume consume away corrode crash croak crumble decline decrease deliquesce descend die away diminish dip down dive dope off down doze off drop drop asleep drop down drowse off dwindle ebb erode fall fall asleep fall away fall down fall off go down go downhill go to sleep go west gravitate have it kick in kick off kick the bucket knock off languish lessen let up lose altitude melt away nod off parachute pass out peg out pipe off pitch plummet plunge pop off pounce pour down precipitate rain run low sag settle to sleep shove off shrink sink slide slump step off stoop subside swoop tail off trend downward wane waste waste away wear wear away