coil 2023.03.13 Meaning of coil in English Noun US /kɔɪl/ UK /kɔɪl/ 1. a long piece of rope or wire that forms a series of rings or circles, one above the other a coil of rope Verb US /kɔɪl/ UK /kɔɪl/ 1. arrange something long and thin in a coil He coiled the rope up neatly.