Bastion vs. bulwark: what’s the difference?
The short answer
A bastion is specifically a projecting part of a fortification and also can mean an institution or person strongly defending principles. Bulwark broadly refers to a defensive wall or a person/institution enhancing defense, not limited to—or necessarily implying—a projecting part.
What they have in common
Both bastion and bulwark refer to structures that provide protection or defense. They are often used metaphorically to describe something that serves to uphold or defend a principle, belief, or system.
Examples
bastion
- The old castle served as a bastion against the invading forces.
- The organization has been a bastion of free speech for decades.
bulwark
- The sea wall acted as a bulwark against the storm surges.
- Education is considered a bulwark against ignorance and tyranny.
Which one is more common?
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