noun

a small waterfall, typically one of several that fall in stages down a steep rocky slope.

the waterfall raced down in a series of cascades

waterfall,falls,water chute,cataract,rapids,torrent,flood,deluge,outpouring,white water,fountain,shower,avalanche,force,linn

verb

(of water) pour downwards rapidly and in large quantities.

water was cascading down the stairs

pour,gush,surge,spill,stream,flow,issue,spurt,jet,tumble,descend,fall,drop,plunge,pitch,overflow