bastion
(noun)
noun
1. a group that defends a principle
- a bastion against corruption
- the last bastion of communism
Definition categories: group, defence, defense
2. a stronghold into which people could go for shelter during a battle
Similar word(s): citadel
Definition categories: man–made, fastness, stronghold
3. projecting part of a rampart or other fortification
Definition categories: man–made, fortification, munition