bastion

definition: projecting part of a rampart or other fortification
example:
speech part: noun
synonyms:
definition: a stronghold into which people could go for shelter during a battle
example:
speech part: noun
synonyms: citadel
definition: a group that defends a principle
example: a bastion against corruption
speech part: noun
synonyms:

bastion is explained and pronounced

How bastion is being used?