bc

1.

avant JC

written abbreviation for the Canadian province of British Columbia: used in addresses:

:
Next year's conference will be in Vancouver, BC, Canada.
1.

avant JC

written abbreviation for because: used, for example, on social media or in text messages:

:
I wasn't in school bc I was sick.
1.

avant JC

abbreviation for Before Christ: used in the Christian calendar when referring to a year before Jesus Christ was born:

:
The Battle of Actium took place in 31 B.C.