sea·​wall | \ ˈsē-ˌwȯl How to pronounce seawall (audio) \

Definition of seawall

: 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

The area, called Saemangeum, was dammed with the world’s largest seawall under a previous administration. The Economist, "South Korea’s government wants greener energy. Who will pay for it?," 15 June 2019 In 2018, with financing from the U.N., authorities constructed a seawall along Barack Obama Drive, which was being eroded by coastal flooding. Nichole Sobecki, National Geographic, "This Tanzanian city may soon be one of the world’s most populous. Is it ready?," 5 Apr. 2019 Visitors walks along the coast in Solana Beach, which has a mix of seawalls and natural bluffs. San Diego Union-Tribune, "Paying the toll on sea level rise," 20 June 2019 Visit the Blue Hut on the seawall at Flagler Drive and South Clematis Street for free Snow Cone Saturdays from noon to 2 p.m. For more information, visit or call 561-822-2222. Jennifer Boehm,, "Our guide to summer: Savings and fun events for kids," 18 June 2019 The woman eats from a foam container and chats with the little girl sitting on the seawall. Matt Tunseth, Anchorage Daily News, "Working the night shift: Snagging salmon in Seward," 11 June 2019 In 1934, Seattle raised enough money to build a seawall on the central waterfront, according to Michelle Baruchman, The Seattle Times, "A look back at the Alaskan Way Viaduct as its demise — and the new Highway 99 tunnel — draw near," 7 Jan. 2019 The city added 9-inch concrete caps to the current seawalls, which are about 80 to 90 years old, at a cost of about $1.8 million earlier this year as an interim measure. Hillary Davis,, "Voters will be asked whether to approve borrowing for high-ticket items but there is only one project on the horizon," 30 June 2018 Pause at the seawall along the way and watch for seals splashing around in the lagoon inlet. San Francisco Chronicle, "One Day, One Place: Bolinas and Stinson Beach," 17 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'seawall.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of seawall

15th century, in the meaning defined above

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Statistics for seawall

Last Updated

7 Jul 2019

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Time Traveler for seawall

The first known use of seawall was in the 15th century

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More Definitions for seawall



English Language Learners Definition of seawall

: a wall built to keep sea waves from coming up onto land


sea·​wall | \ ˈsē-ˌwȯl How to pronounce seawall (audio) \

Kids Definition of seawall

: a bank or a wall to prevent sea waves from eroding the shore

More from Merriam-Webster on seawall

Rhyming Dictionary: Words that rhyme with seawall

Spanish Central: Translation of seawall

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