Nouns

(n)working, workingsa mine or quarry that is being or has been worked

Adjectives

(s)working, on the jobactively 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”
(s)workingadequate 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”
(s)workingadopted as a temporary basis for further work“a working draft”, “a working hypothesis”
(s)running, operative, functional, working(of e.g. a machine) performing or capable of performing“in running (or working) order”, “a functional set of brakes”
(s)workingserving 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”