swarm

Universal Words noun, verb noun ~ (of sth) 1 a large group of insects, especially bees, moving together in the same direction: a swarm of bees / locusts / flies 2 a large group of people, especially when they are all moving quickly in the same direction verb [V] 1 [+adv./prep.] (often disapproving) (of people, animals, etc.) to move around in a large group: Tourists were swarming all over the island. 2 (of bees and other flying insects) to move around together in a large group, looking for a place to live PHRASALVERBS swarm with sb/sth to be full of people or things: The capital city is swarming with police.