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 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 The Duxbury Fire Department says another chunk of the seawall broke off Wednesday evening. Demarco Morgan, CBS News, "Broken seawall leaves Massachusetts homes at risk amid second nor'easter," 7 Mar. 2018 Behind the seawall, which opened in 1936, the city paved a four-lane road and named it Alaskan Way as a nod to Alaska’s importance to Seattle’s economic development. 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 bill also makes changes to Federal Emergency Management Agency programs by putting more money into such things as rebuilding levees and building seawalls before hurricanes hit so that the damage won't be as severe. Kevin Freking, Fox News, "US House approves $1.7 billion in disaster aid for Carolinas," 28 Sep. 2018 Hunks of basalt as much as 8 feet in diameter and slabs of concrete 11 feet across armored the beach, left from a seawall built in the 1950s. Lynda V. Mapes, The Seattle Times, "Lawsuit seeks more review of projects that ‘armor’ Puget Sound shoreline," 22 May 2018 Bulkhead is a manmade divider, acting as a seawall. William Axford, Houston Chronicle, "Video: Walden man saves deer from drowning," 7 May 2018 If electric cars and clean energy aren’t enough to prevent rising oceans, then there’s money to be made in seawalls, indoor agriculture and emergency housing. Recode Staff, Recode, "Recode Daily: Why Google is shutting down Google+, Facebook’s tone-deaf camera device," 9 Oct. 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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Dictionary Entries near seawall

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sea walnut


Statistics for seawall

Last Updated

17 Mar 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

Comments on seawall

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to boil down or concentrate

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