postbus/ˈpəʊstˌbʌs/EtymologyFrom post + bus.nounA mail delivery vehicle that also serves as a bus for passengers, typically in areas with limited public transport.“The novelty value of a postbus ride is even 'sold' in some local tourist offices; the Broadford-Elgol route on the Isle of Skye has acquired particular fame for its spectacular views of the Cuillin Hills.”