S: (n) current, stream (a steady flow of a fluid (usually from natural causes)) "the raft floated downstream on the current"; "he felt a stream of air"; "the hose ejected a stream of water"
S: (n) freshet, spate (the occurrence of a water flow resulting from sudden rain or melting snow)
S: (n) drip, trickle, dribble (flowing in drops; the formation and falling of drops of liquid) "there's a drip through the roof"
S: (n) emission (the occurrence of a flow of water (as from a pipe))
S: (n) flush, gush, outpouring (a sudden rapid flow (as of water)) "he heard the flush of a toilet"; "there was a little gush of blood"; "she attacked him with an outpouring of words"