1
: a wall forming the side of something
2
: the side of an automotive tire between the tread shoulder and the rim bead

Examples of sidewall in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Ramos played the carom of the sidewall perfectly and fired a throw to second, prompting Moreno to slam on the brakes and retreat to first. Justice Delos Santos, Mercury News, 2 July 2026 The sidewalls told the story—a treadwear rating of 440 and an M+S marking. Michael Harley, Forbes.com, 30 June 2026 Technical information appears on the sidewall. Jason Fogelson, AJC.com, 29 May 2026 Those pressures border on turning hydraulic fluid into a solid, which, especially when paired with larger wheels and narrower tire sidewalls, prevents any semblance of a smooth ride, even on the best asphalt. ArsTechnica, 9 June 2026 See All Example Sentences for sidewall

Word History

First Known Use

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of sidewall was in the 14th century

Cite this Entry

“Sidewall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sidewall. Accessed 10 Jul. 2026.

Kids Definition

sidewall

noun
1
: a wall forming the side of something
2
: the side of an automotive tire between the tread shoulder and the rim
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