swarm

A large number of insects or other small organisms, especially when in motion.

To move or gather in large numbers.

A group of bees, social wasps, or ants, when migrating with a queen to establish a new colony.

An aggregation of persons or animals, especially when in turmoil or moving in mass.

A number of similar geologic phenomena or features occurring closely within a given period or place.

To move or emerge in a swarm.

To leave a hive as a swarm. Used of bees.

To climb by gripping with the arms and legs.