: 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 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.
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Drew Goins, The Atlantic, 2 Feb. 2026
Aside from insurance, to reduce climate vulnerability, governments can also build out physical defenses like seawalls and flood barriers, while deepening partnerships with multilateral organizations like the Asian Development Bank and World Bank.
—Angelica Ang, Fortune, 30 Jan. 2026
The same group said that building infrastructure like seawalls to protect communities against rising sea levels and flooding by 2040 will cost Connecticut a minimum of $5.3 billion.
—Stephen Underwood, Hartford Courant, 28 Jan. 2026
The school still needs about $2 million to get it across the finish line — including the heavy lifting of bursting the seawall to create the inland lagoon that will host the mangroves.
—Alex Harris, Miami Herald, 27 Jan. 2026
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Drew Goins, The Atlantic, 2 Feb. 2026
Aside from insurance, to reduce climate vulnerability, governments can also build out physical defenses like seawalls and flood barriers, while deepening partnerships with multilateral organizations like the Asian Development Bank and World Bank.
—Angelica Ang, Fortune, 30 Jan. 2026
The same group said that building infrastructure like seawalls to protect communities against rising sea levels and flooding by 2040 will cost Connecticut a minimum of $5.3 billion.
—Stephen Underwood, Hartford Courant, 28 Jan. 2026
The school still needs about $2 million to get it across the finish line — including the heavy lifting of bursting the seawall to create the inland lagoon that will host the mangroves.
—Alex Harris, Miami Herald, 27 Jan. 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 15 Feb. 2026.
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seawall
noun
sea·wall
ˈsē-ˌwȯl 
: a wall or bank to prevent sea waves from wearing away the shore
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