DictionarybulwarkStrong defense
noun

bulwark

BOOL-werk/ˈbʊlwɜːrk/

A strong defense against danger or attack.

The massive seawall forms a bulwark against the breaking waves.

A massive stone seawall blocks a breaking wave, leaving the ground and small coastal house behind it dry and protected.
Etymology

The ancestor named a rampart or barricade, a physical defense against attack. That concrete protection became an image for anything serving as a strong defense or safeguard.

In context

1221 Manhwa Recap234:15
The thunder shield evolves into a bulwark, its defensive range vastly expanded, its shielding and defense soaring, gaining additional heavy damage reduction, and able to cover others.
My Skill Was Rated ZERO Stars. So I Cast It 100,000 Times.—Weakest Mage → God of Fire.

More examples

  • Independent courts can be a bulwark against arbitrary power.
  • The dunes serve as a natural bulwark against storm waves.
  • The fortress's bulwarks protected the harbor entrance.

Forms

bulwark · bulwarks

Similar words

barrier
Any obstruction, while bulwark emphasizes protective strength.