adj. & n.
adj. 1 engaged in work, esp. in manual or industrial labour. 2 functioning or able to function.
n. 1 the activity of work. 2 the act or manner of functioning of a thing. 3 a a mine or quarry. b the part of this in which work is being or has been done (a disused working). working capital the capital actually used in a business. working class the class of people who are employed for wages, esp. in manual or industrial work. working-class adj. of the working class. working day esp. Brit. 1 a workday. 2 the part of the day devoted to work. working drawing a drawing to scale, serving as a guide for construction or manufacture. working hours hours normally devoted to work. working hypothesis a hypothesis used as a basis for action. working knowledge knowledge adequate to work with. working lunch etc. a meal at which business is conducted. working order the condition in which a machine works (satisfactorily or as specified). working-out 1 the calculation of results. 2 the elaboration of details. working party a group of people appointed to study a particular problem or advise on some question.