road fund licenceBrE /ˈrəʊd fʌnd laɪsns/ 🔊NAmE /ˈroʊd fʌnd laɪsns/ 🔊 (also ˈtax disc) noun(in Britain) a small circle of paper that was put on the window of a vehicle or on a motorcycle to show that the owner had paid the tax that allows them to use the vehicle on public roads （英国）路税付讫证（过去贴在机动车上，表示已缴税，可上路行驶）