: a wall or embankment to protect the shore from erosion or to act as a breakwater
Examples of seawall in a Sentence
Recent Examples on the Web
Shared facilities include a pool, grilling and al fresco dining areas, and a seawall with ocean views.
—
The Week Us, TheWeek, 9 Mar. 2026
Community leaders in nearby Asharoken say a seawall built to protect the shoreline, and the only road in and out of the area, has fallen apart.
—John Dias, CBS News, 7 Mar. 2026
One commercial jet careened into a seawall while landing in heavy fog; another plunged into Tokyo Bay for unknown reasons; yet another, into Japan’s Seto Inland Sea, also for unknown reasons.
—Burkhard Bilger, New Yorker, 2 Mar. 2026
The smaller number of Antarctic Treaty nations might make building a 50-mile underwater seawall to protect a melting glacier a little more feasible to coordinate than geoengineering measures that would require UN buy-in, Elliott writes.
—Drew Goins, The Atlantic, 2 Feb. 2026
See All Example Sentences for seawall
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The Week Us, TheWeek, 9 Mar. 2026
Community leaders in nearby Asharoken say a seawall built to protect the shoreline, and the only road in and out of the area, has fallen apart.
—John Dias, CBS News, 7 Mar. 2026
One commercial jet careened into a seawall while landing in heavy fog; another plunged into Tokyo Bay for unknown reasons; yet another, into Japan’s Seto Inland Sea, also for unknown reasons.
—Burkhard Bilger, New Yorker, 2 Mar. 2026
The smaller number of Antarctic Treaty nations might make building a 50-mile underwater seawall to protect a melting glacier a little more feasible to coordinate than geoengineering measures that would require UN buy-in, Elliott writes.
—Drew Goins, The Atlantic, 2 Feb. 2026
See All Example Sentences for seawall
Cite this Entry
“Seawall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seawall. Accessed 18 Mar. 2026.
Copy CitationKids Definition
seawall
noun
sea·wall
ˈsē-ˌwȯl 
: a wall or bank to prevent sea waves from wearing away the shore
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