a body of honeybees that emigrate from a hive and fly off together, accompanied by a queen, to start a new colony.

a body of bees settled together, as in a hive.

a great number of things or persons, esp. in motion.

Biology . a group or aggregation of free-floating or free-swimming cells or organisms.

Geology . a cluster of earthquakes or other geologic phenomena or features.

to fly off together in a swarm, as bees.

to move about, along, forth, etc., in great numbers, as things or persons.

to congregate, hover, or occur in groups or multitudes; be exceedingly numerous, as in a place or area.

(of a place) to be thronged or overrun; abound or teem

The beach swarms with children on summer weekends.

Biology . to move or swim about in a swarm.

to swarm about, over, or in; throng; overrun.

to produce a swarm of.

verb

retreat

noun

army , bevy , blowout , concourse , covey , crowd , crush , drove , flock , herd , horde , host , jam , mass , mob , multitude , myriad , pack , press , push , school , shoal , throng , troop , turnout , ruck , cloud , legion , score

verb

abound , be alive , be numerous , cluster , congregate , crawl , crowd , flock , flow , gather , gather like bees , jam , mass , mob , move in a crowd , overrun , pullulate , rush together , stream , teem , throng , flood , troop , bristle , overflow , army , assemble , drove , group , horde , infest , migrate , move , multitude , myriad , pack , rush , shin , turnout