noun
redoubt
rih-DOUT/rɪˈdaʊt/
A fortified place used for defense or refuge.
The earthen redoubt has a defensive wall and sheltered entrance.

Etymology
“Lead back” underlies the idea of a withdrawn place of retreat or refuge. That refuge sense developed into the name for a small enclosed defensive fortification.
In context
Tristan and the others are hiding out in the redoubt which is the giant Maze of secret tunnels under the uterusia palace
More examples
- Thick earthen walls protect the redoubt from cannon fire.
- The defenders retreat to their last redoubt.
- Visitors can explore two restored redoubts near the harbor.
Forms
redoubt · redoubts
Similar words
- fort
- A general military defensive structure, not specifically a refuge.
- fortress
- Usually suggests a larger, more permanent fortification than a redoubt.
- stronghold
- Emphasizes secure control or resistance, without necessarily implying built fortifications.