Definition of: working

(wûr′king) adjective
1. Engaged actively in some employment.
2. That works, or performs its function: This is a working model.
3. Sufficient for use or action: They formed a working agreement.
4. Relating to or occupied by work: a working day.
5. Throbbing with pain; also, twitching: said especially of the face muscles.
6. Fermenting, as wine.
—noun
1. The act or operation of any person or thing that works, in any sense.
2. That part of a mine or quarry where excavation is going on or has gone on.