1) Type of road 
A side road is a minor highway typically leading off a main road. A side road may be so minor as to be uncategorized with a road number. In an urban area, a side road may be a narrow street leading off a more major street, especially in a residential area. == Side street == A side street is a street that intersects a main street and ends there. It...
[n] - a minor road branching off of a main road
noun a minor road branching off of a main road