A road that passes through one or more cities, towns, or villages; especially one which serves as a route for through traffic; a main road within a built-up area.
Origin
Mid 17th century; earliest use found in Thomas Fuller (1607/8–1661), Church of England clergyman. In some forms from thorough- + road.
Definition of through road in US English:
through road
nounˈθruː rəʊd
A road that passes through one or more cities, towns, or villages; especially one which serves as a route for through traffic; a main road within a built-up area.
Origin
Mid 17th century; earliest use found in Thomas Fuller (1607/8–1661), Church of England clergyman. In some forms from thorough- + road.