"a coil of rope"

• a single ring in a coil

  "the snake wrapped its coils around her"

• an intrauterine contraceptive device (IUD) in the form of a coil

  "many women don't like the idea of having a coil fitted"

• an electrical device consisting of a coiled wire, for converting the level of a voltage, producing a magnetic field, or adding inductance to a circuit

  "a relay coil"

• an electrical coil used for transmitting high voltage to the spark plugs of an internal combustion engine
• a slow-burning spiral made from the dried paste of pyrethrum powder, which produces a smoke that deters mosquitoes
• a roll of postage stamps, especially one for use in a vending machine

"he began to coil up the heavy ropes"

• move or twist into the shape of a coil

  "smoke coiled lazily towards the ceiling"