Definitions

1. noun

The outer surface of a building, especially the wall of a house or other structure adjacent to a street or other public area.

“The broken window on the sidewall of the building was boarded up for safety.”

2. noun

The side of a road, especially one that is designated for pedestrians or vehicles.

“The bike path runs along the sidewall of the road, separated from traffic by a barrier.”

3. noun

A vertical section of a tire that contacts the road.

“The sidewall of the tire was damaged during the accident and needed to be replaced.”