Definition of working:
a mine or quarry that is being or has been worked
actively engaged in paid work; "the working population"; "the ratio of working men to unemployed"; "a working mother"; "robots can be on the job day and night"
adequate for practical use; especially sufficient in strength or numbers to accomplish something; "the party has a working majority in the House"; "a working knowledge of Spanish"
adopted as a temporary basis for further work; "a working draft"; "a working hypothesis"
(of e.g. a machine) performing or capable of performing; "in running (or working) order"; "a functional set of brakes"
serving to permit or facilitate further work or activity; "discussed the working draft of a peace treaty"; "they need working agreements with their neighbor states on interstate projects"