The crossword solution for the term COIL OR CURL is SPIRE, which is a five-letter word. A SPIRE is a tall, slender structure that is often found on top of a church or other building. It is usually conical or pyramidal in shape and can be made of stone, metal, or other materials. In terms of a coil or curl, a SPIRE is a spiral shape that is created when something is wound around itself. This could be a strand of hair, a rope, or any other object that can be wound around itself.