: a wall or embankment to protect the shore from erosion or to act as a breakwater
Examples of seawall in a Sentence
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The Surfrider Foundation issued a word of caution this week about the use of seawalls next to coastal properties in La Jolla.
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Ashley MacKin Solomon, San Diego Union-Tribune, 6 June 2025
Estimates for the cost of new septic systems and protective seawalls have spiraled to $500,000 and considerably more, homeowners say.
—James Rainey, Los Angeles Times, 11 May 2025
Without healthy and thriving reefs, aquatic creatures lose their habitats and coastlines lose a natural seawall that can protect communities from storms — preventing billions of dollars in flood damage, according to the NOAA.
—Karen Hua, CBS News, 19 May 2025
The list also includes the possibility of leaving the tracks in place on the bluffs with no tunnel and installing a second set of rails with more seawalls and retaining walls.
—Phil Diehl, San Diego Union-Tribune, 4 Mar. 2025
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Ashley MacKin Solomon, San Diego Union-Tribune, 6 June 2025
Estimates for the cost of new septic systems and protective seawalls have spiraled to $500,000 and considerably more, homeowners say.
—James Rainey, Los Angeles Times, 11 May 2025
Without healthy and thriving reefs, aquatic creatures lose their habitats and coastlines lose a natural seawall that can protect communities from storms — preventing billions of dollars in flood damage, according to the NOAA.
—Karen Hua, CBS News, 19 May 2025
The list also includes the possibility of leaving the tracks in place on the bluffs with no tunnel and installing a second set of rails with more seawalls and retaining walls.
—Phil Diehl, San Diego Union-Tribune, 4 Mar. 2025
See All Example Sentences for seawall
Cite this Entry
“Seawall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/seawall. Accessed 11 Jun. 2025.
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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