A-ROAD Meaning of A-ROAD in English A-road /ˈeɪ rəʊd $ -roʊd/ BrE AmE noun [countable] a type of road in Britain that is smaller than a ↑ motorway , but larger than a ↑ B-road Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012