winder

1. A winding plant.
2. An engine that raises and lowers the cages in a mine.
3. The person who operates such an engine.
4. A textile worker, or machine, that winds cloth.
5. A spool around which something is wound.
6. A key or knob for winding a clock, watch or clockwork mechanism
7. One of the steps of a spiral staircase (as opposed to a flyer, or straight step).

الجمع winders