n.
Function: intransitive verb
Date: 14th century
1 : to form and depart from a hive in a swarm
2 a : to move or assemble in a crowd : THRONG b : to hover about in the manner of a bee in a swarm
3 : to contain a swarm : TEEM < swarm ing with bugs>
transitive verb
1 : to fill with a swarm
2 : to beset or surround in a swarm <players swarm ing the quarterback>
– swarm · er noun