(of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line)
intrusive in a meddling or offensive manner
keep busy with
overcrowded or cluttered with detail
actively or fully engaged or occupied
crowded with or characterized by much activity
actively engaged in paid work
a mine or quarry that is being or has been worked
(of e.g. a machine) performing or capable of performing
adequate for practical use; especially sufficient in strength or numbers to accomplish something
adopted as a temporary basis for further work
serving to permit or facilitate further work or activity
