Is swarm in there was a swarm of bees a verb?

Swarm is a collective noun .
Swarming is the process by which a new honey bee colony is formed when the queenbee leaves the colony with a large group of worker bees. In the prime swarm, about 60% of the worker bees leave the original hive location with the old queen. This swarm can contain thousands to tens of thousands of bees.

Ifound this on google “what are motifs? a motif is a literary term that is an idea, object, or concept that repeats itself throughout a text. a motif gives clues to theme or reinforces ideas an author wants to emphasize.” i hope this for what your looking for