swarm — Insects swarm /swɔːm/ noun CEFR A2 A large group of insects flying or moving together. “A swarm of bees flew past the window.” Related words in this scene flyflowerbeebutterflyhoneydangerouswingnestinsectantspiderwaspmosquitobeetleladybirdmothcaterpillarwormstingbitebuzzwebhivecrawlsmalltinycolourfulgrasshopperantennacocoonlarvaflutter Practice this word Create worksheet