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

This includes $40 billion in relocation or home elevation subsidies, and $30 billion for infrastructure such as seawalls to protect coastal cities. Grace Segers, CBS News, "Where the 2020 candidates stand on climate change," 4 Sep. 2019 Four of the nine donors at issue in the probe were subcontractors on a complex, nearly $40 million contract for engineering and planning services tied to the long-running effort to bolster the aging seawall along the city’s northern waterfront. Dominic Fracassa,, "Breed 2018 campaign probed for possible campaign finance violations," 19 Aug. 2019 Entrances at Oak Street, Pine Street, under the Morrison Bridge and along the seawall at Pine Street. Andre Meunier,, "Oregon Brewers Festival kicks off this week with Unipiper’s ‘full flame and sound’," 21 July 2019 Iguanas like to dig out nests in yards and next to seawalls, Portuallo says. Doreen Christensen,, "Iguanas are worse than ever and we’re spending big bucks to get rid of them," 21 June 2019 When the tsunami hit 46 minutes later, climbing over the plant's seawall and flooding the first four reactors, the emergency generators were killed, resulting in a loss of coolant and multiple nuclear meltdowns. Courtney Linder, Popular Mechanics, "Russia is Sailing a 'Floating Chernobyl' Into the Arctic," 26 Aug. 2019 Last week’s heavy rainfall eroded enough of the beach to expose the remains of old cars embedded in boulders filled with cement as part of a seawall built decades earlier. Los Angeles Times, "Encinitas beach cliff collapse that killed 3 women part of larger California coast crisis," 3 Aug. 2019 In a press release, FWC reiterates that green iguanas are not native, and can cause damage to infrastructure such as sidewalks and seawalls. Richard Tribou,, "Dial back the ‘wild west’ iguana hunting, Florida wildlife officials say," 11 July 2019 Penny Elia, a Laguna Beach resident and longtime coastal advocate, looks at a seawall that the California Coastal Commission ordered torn down in this August 2018 file photo. Daily Pilot, "O.C. judge sides with Coastal Commission, orders Laguna Beach homeowners to tear down controversial seawall," 18 July 2019

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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Dictionary Entries near seawall

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sea vampire




sea walnut


Statistics for seawall

Last Updated

15 Sep 2019

Look-up Popularity

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

Comments on seawall

What made you want to look up seawall? Please tell us where you read or heard it (including the quote, if possible).


to spread over or through

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