swarm

[1]	throng , mass , crowd , congregate , flock , gather , flood , stream , flow
[2]	swarm with , teem , pullulate , be swarming with , crawl with , abound in/with , throng with , teem with , burst with , bristle with , be overrun with
[3]	pour , stream , teem , pullulate

[1]	drove , throng , horde , horde , army , host , multitude , hive , herd , mob , mass , drove , flood , stream , cloud , flock , pack , shoal , bunch
[2]	cloud