The noun road has 2 senses (first 2 from tagged texts)
1. (95) road, route -- (an open way (generally public) for travel or transportation)
2. (2) road -- (a way or means to achieve something; "the road to fame")
Overview of adj road
The adj road has 2 senses (no senses from tagged texts)
1. road -- (taking place over public roads; "road racing")
2. itinerant, road, touring, traveling -- (working for a short time in different places; "itinerant laborers"; "a road show"; "traveling salesman"; "touring company")