1 [singular] also workings the way something such as a system, piece of equipment, or organization works
2 a particular way of working, especially relating to the hours which someone works
flexible/short-time etc working
3 [countable usually plural]TI a mine or part of a mine where soil has been dug out in order to remove metals or stone [↪ quarry]

Related topics:
his knowledge of the inner workings of the department