Yes, coil is a Scrabble word!

Verb

1. To wind or move in a spiral course

2. Make without a potter's wheel

3. Wind around something in coils or loops

Noun

1. A structure consisting of something wound in a continuous series of loops

2. A round shape formed by a series of concentric circles (as formed by leaves or flower petals)

3. A transformer that supplies high voltage to spark plugs in a gasoline engine

4. A contraceptive device placed inside a woman's womb

5. Tubing that is wound in a spiral

6. Reactor consisting of a spiral of insulated wire that introduces inductance into a circuit