bulwark
Definitions
A defensive wall or embankment, especially one built for protection.
A person, institution, or principle that acts as a strong defense or safeguard.
The side of a ship above the deck level, serving as a railing.
Examples
The ancient stone wall served as a sturdy bulwark against the invading forces.
The legal system acts as a vital bulwark for the protection of individual rights.
Synonyms
fortification rampart defense safeguard barricade buttress protection
Antonyms
weakness vulnerability exposure assailant threat danger opening