1. a light line that is used in lettering to help align the letters • Hypernyms: line 2. a detailed plan or explanation to guide you in setting standards or determining a course of action - the president said he had a road map for normalizing relations with Vietnam • Syn: road map • Hypernyms: plan, program, programme, guidance, counsel, counseling, counselling, direction 3. a rule or principle that provides guidance to appropriate behavior • Syn: guidepost, rule of thumb • Hypernyms: rule, regulation