(n)stream, flow, currentdominant course (suggestive of running water) of successive events or ideas“two streams of development run through American history”, “stream of consciousness”, “the flow of thought”, “the current of history”
(n)stream, flowsomething that resembles a flowing stream in moving continuously“a stream of people emptied from the terminal”, “the museum had planned carefully for the flow of visitors”
(n)current, streama 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”