Fortress or stronghold
Derived from the Old French word 'bastille', it refers to a projecting part of a fortification. While often associated with the name Sebastian, it has emerged as a standalone name representing stability and protection.
Less common today
Bastion isn't in the latest US Top 1000. It last peaked at #3,484 in 2019.
A sentient robot character Β· Overwatch
An anti-mutant cyborg villain Β· X-Men comics
US births per 5-year period, 1990βpresent (SSA data).