masterman UK /ˈmɑː.stəˌmən/US /ˈmæs.tɚˌmən/ noun1 •A master craftsman, often employing apprentices or journeymen.1975 Daily Tel. 15 Sept. 17/1: "The main problem is the difficulty in finding a masterman to be apprenticed to; nearly all mastermen are already training apprentices." — 1975 formsmastermen