sidewall

American  

[sahyd-wawl] / ˈsaɪdˌwɔl /

noun

1. the part of a pneumatic tire between the edge of the tread and the rim of the wheel.

2. a wall that serves as the side of a structure.

3. the side part of the upper of a shoe.

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sidewall British  

/ ˈsaɪdˌwɔːl /

noun

1. either of the sides of a pneumatic tyre between the tread and the rim

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Etymology

Origin of sidewall

Middle English word dating back to 1350–1400; side ¹, wall

Example Sentences

“There is beauty in the sidewall and the neighbor’s trees. The views extend the house outwards.”

From Los Angeles Times • Aug. 13, 2025

Otherwise, the hole is sealed with a plug, and from the inside it is covered by a sidewall.

From Seattle Times • Jan. 6, 2024

"This issue has likely been caused by the high-frequency interference between the tyre sidewall and the 50mm 'pyramid' kerbs used extensively at this circuit, aggravated by the propensity to ride those kerbs."

From BBC • Oct. 7, 2023

Heavy and overloaded vehicles in extreme heat are particularly susceptible to sidewall blowouts, according to Chicago-based United Tires, a nationwide used-tire seller.

From Scientific American • Aug. 18, 2023

“You want us to tie it back down?” says Grady, pointing at the flapping sidewall.

From "Water for Elephants" by Sara Gruen