Definition of BC in US English:

BC

  • 1Before Christ (used to indicate that a date is before the Christian era).

  • 2British Columbia (in official postal use).

  • 3Batallion Commander.

Usage

BC is normally written in small capitals and placed after the numerals, as in 72 BC (not BC 72). See also AD

Pronunciation

BC

/ˌbiˈsi//ˌbēˈsē/