caterpillar — Insects caterpillar /ˈkætəpɪlə(r)/ noun CEFR A2 A small, long creature that later becomes a butterfly or moth. “The caterpillar ate the green leaf.” Related words in this scene flyflowerbeebutterflyhoneydangerouswingnestinsectantspiderwaspmosquitobeetleladybirdmothwormstingbitebuzzwebhivecrawlsmalltinycolourfulgrasshopperantennacocoonswarmlarvaflutter Practice this word Create worksheet