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swarm 
  n 
1 army, bevy, concourse, crowd, drove, flock, herd, horde, host, mass, multitude, myriad, shoal, throng 
  vb 
2 congregate, crowd, flock, mass, stream, throng 
3  (with)   with abound, be alive, be infested, be overrun, bristle, crawl, teem 



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