Degree of excellence or the internal diameter of a gun
Derived from the English word referring to the quality of someone's character or the level of their ability. It also has technical roots in measuring the bore of a firearm, originating from the French 'calibre' and likely the Arabic 'qalib', meaning a mold for casting metal.
About 9 boys were named Caliber in 2025.
US births per 5-year period, 1990–present (SSA data).
