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
The hard sidewalls swing out and secure inside tracks mounted atop the bed rails.
—
New Atlas, 9 Jan. 2026
The standout feature for this backpack is its Wingjacket Protection, which includes flexible compression straps and padded sidewalls that protect and compress your items to minimize the bag’s overall size.
—Sophie Dodd, Travel + Leisure, 7 Jan. 2026
In addition to the decal, the preferred tire pressure should also be visible on the tires’ sidewalls.
—Jackie Charniga, Freep.com, 16 Dec. 2025
Air bubbles, cracks and bulges in a tire's sidewall could all warrant a tire change.
—Charles Singh, USA Today, 6 Nov. 2025
See All Example Sentences for sidewall
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New Atlas, 9 Jan. 2026
The standout feature for this backpack is its Wingjacket Protection, which includes flexible compression straps and padded sidewalls that protect and compress your items to minimize the bag’s overall size.
—Sophie Dodd, Travel + Leisure, 7 Jan. 2026
In addition to the decal, the preferred tire pressure should also be visible on the tires’ sidewalls.
—Jackie Charniga, Freep.com, 16 Dec. 2025
Air bubbles, cracks and bulges in a tire's sidewall could all warrant a tire change.
—Charles Singh, USA Today, 6 Nov. 2025
See All Example Sentences for sidewall
Cite this Entry
“Sidewall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sidewall. Accessed 23 Jan. 2026.
Copy CitationKids Definition
sidewall
noun
side·wall
-ˌwȯl 
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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