working

noun

1. the act of a person or thing that works.
2. operation; action: the involuted workings of his mind.
3. the process of shaping a material: The working of clay is easy when it’s damp.
4. the act of manufacturing or building a thing.
5. Usually workings. a part of a mine, quarry, or the like, in which work is carried on.
6. the process of fermenting, as of yeasts.
7. a slow advance involving exertion.
8. disturbed or twisting motions: The working of his limbs revealed the disease.
9. repeated movement or strain tending to loosen a structural assembly or part.