bastion
🇺🇸
/ˈbæstʃən/
🇬🇧
/ˈbæstiən/
A bastion is a strong support or defender of something, like a belief or way of life, that is under threat.
The school is a bastion of traditional values.
A bastion is also a fortified position or stronghold that soldiers defend during a battle.
The castle served as a bastion against the enemy invasion.