B.C.

1. Bachelor of Chemistry.

2. Bachelor of Commerce.

3. bass clarinet.

4. battery commander.

5. before Christ (used in indicating dates).

6. British Columbia.

Usage. 5. The abbreviation B.C. "before Christ" is always placed after a date or century: Cleopatra lived from 69 to 30 B.C. The war took place in the first century B.C. See also A.D.

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