|1.||[ noun ] (military) a group that defends a principle|
"a bastion against corruption" "the last bastion of communism"
|2.||[ noun ] a stronghold into which people could go for shelter during a battle|
|Related terms:||stronghold kremlin kremlin Alhambra acropolis|
|3.||[ noun ] (military) projecting part of a rampart or other fortification|