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.
There's also an openable oval window just behind the doorway on the sidewall, matched to an identical opening window on the opposite wall. New Atlas, 14 Sep. 2026 The tread wraps down from the shoulders, covering nearly a third of the sidewall. Michael Febbo, The Drive, 2 Sep. 2026 Yet, despite the seemingly carefree construction, the shoe’s high sidewall design is intended to hug the wearer’s foot for a secure fit. Riley Jones, Footwear News, 27 Aug. 2026 There are no cracks on the sidewalls and more than enough tread on them. John Paul Senior Manager Public Affairs and Traffic Safety Aaa Northeast, Hartford Courant, 15 Aug. 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 21 Sep. 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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