1. a strong defensive wall or barrier
Usage: often used figuratively
2. something that protects or defends against danger or attack
Usage: figurative use
3. the side of a ship above the deck
Usage: nautical

1. to protect or defend with or as if with a bulwark

Examples

• The ancient city was protected by massive stone bulwarks.
• Free speech serves as a bulwark against tyranny.
• The constitution acts as a bulwark of individual rights.
• The sailors leaned against the ship’s bulwark to watch the sunset.
• Education can bulwark society against ignorance and prejudice.
• The mountains bulwark the valley from harsh winter winds.
• Democracy requires strong institutions to bulwark it from corruption.