bulwark
Americannoun
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a wall of earth or other material built for defense; rampart.
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any protection against external danger, injury, or annoyance.
The new dam was a bulwark against future floods.
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any person or thing giving strong support or encouragement in time of need, danger, or doubt.
Religion was his bulwark.
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Nautical. Usually bulwarks. a solid wall enclosing the perimeter of a weather or main deck for the protection of persons or objects on deck.
verb (used with object)
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bulwarks,
present (3rd person singular)
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bulwarked,
past participle, past
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bulwarking
present participle
noun
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a wall or similar structure used as a fortification; rampart
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a person or thing acting as a defence against injury, annoyance, etc
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(often plural) nautical a solid vertical fencelike structure along the outward sides of a deck
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a breakwater or mole
verb
Other Word Forms
Inflected Forms
Participles
Conjugated Forms
Present
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bulwarksimple
-
bulwarkssimple
-
have bulwarkedperfect
-
has bulwarkedperfect
-
am bulwarkingprogressive
-
are bulwarkingprogressive
-
is bulwarkingprogressive
-
have been bulwarkingperfect progressive
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has been bulwarkingperfect progressive
Past
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bulwarkedsimple
-
had bulwarkedperfect
-
was bulwarkingprogressive
-
were bulwarkingprogressive
-
had been bulwarkingperfect progressive
Future
Etymology
Origin of bulwark
1375–1425; late Middle English bulwerk, probably < Middle Dutch bolwerc, equivalent to bol ( l ) e bole 1 + werk work (noun); cf. boulevard
Explanation
A bulwark is a wall built for protection or defense. If you and your pals build a secret fort for girls only, you might want to build a bulwark to surround it — with a "No Boys Allowed" sign posted prominently. A seawall that runs perpendicular to the shore is sometimes called a bulwark, because it defends the beach, not against invaders, but against beach erosion. Although the noun bulwark can refer to any fortified wall, it often specifically refers to an earthen wall, like a rampart. As a verb, bulwark means to fortify with a wall or to provide protection: "The volunteers used sandbags to bulwark the levee in an attempt to prevent the flooded river from overflowing its banks."
Vocabulary lists containing bulwark
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The new defense agreement could be seen as an effort to build up a bulwark against future Iranian attacks, analysts said.
From The Wall Street Journal ● Aug. 7, 2026
Death imagery as a bulwark against fear of death is so well known that it is covered under the psychological umbrella of Terror Management Theory as a coping mechanism.
From Slate ● Jul. 10, 2026
Zinat-un-Nisa was a powerful political actor and an "extraordinarily influential and important political bulwark for her ageing and politically vulnerable" father toward the end of his life.
From BBC ● Jun. 27, 2026
In any event, the market recovered the next day, and the Fed’s image as a willing bulwark against market declines was born.
From Los Angeles Times ● Jun. 25, 2026
For Glanvill, and others like him, the new science was intended to serve as a bulwark against materialism and atheism; being modern and believing in witchcraft went hand in hand.
From "The Invention of Science" by David Wootton
Their purpose is the opposite: to preserve and protect; to create bulwarks of predictability amid the chaos of the markets.
From The Wall Street Journal ● Jun. 8, 2026
Most of my life, the American right has had lots of bulwarks against that kind of racism and antisemitism—and militant, anti-democratic strains.
From Slate ● May 18, 2024
Forests could also be potential bulwarks against climate change.
From Science Daily ● Apr. 10, 2024
Both strikes, Taplin says, were successful because the guilds gained bulwarks against potential decimation by artificial intelligence.
From Seattle Times ● Nov. 9, 2023
Flames of abnormal size were pursuing them, licking up the sides of the junk bulwarks, which were crumbling to soot at their touch.
From "Harry Potter and the Deathly Hallows" by J.K. Rowling
The valuations are bulwarked by new information from Cerebras’s pre-IPO filings with the SEC showing company revenue grew 76% between 2024 and 2025 to $510 million.
From The Wall Street Journal ● Apr. 27, 2026
Presidential blue-ribbon panels bulwarked the Social Security program in 1983 and overhauled NASA’s space shuttle program after the 1986 Challenger disaster.
From Scientific American ● Feb. 24, 2023
Even Einstein, the prototypical loner, was bulwarked by a vast correspondence of arguing and discussion.
From New York Times ● Oct. 31, 2016
He didn't say that the British way is better, cleaner, more constitutionally bulwarked – because, actually, it isn't.
From The Guardian ● Aug. 28, 2010
No one can compute how much the bulwarked learned ones have blocked the path of wisdom.
From Little Journeys to the Homes of the Great Philosophers, Volume 8 by Elbert Hubbard
In addition to bulwarking security, many are bunkering from reporters who have descended on a normally sleepy community.
From Washington Post ● Jan. 9, 2023
On the DDoS front, the companies involved are doubtless bolstering their defenses, but bulwarking for brute force denial of service attacks is an ongoing process, and there’s no panacea.
From Time ● Aug. 25, 2014
With unemployment severe, but less so than in other Great Powers, and with French thrift bulwarking the private citizen for some time to come.
From Time Magazine Archive
The State Department insisted gamely that Nixon was actually bulwarking Rogers' political initiative.
From Time Magazine Archive
This bulwarking looked something like a boat-builder's stocks.
From Toilers of the Sea by Victor Hugo
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
