bc

abbreviation for

Music. basso continuo.
blind copy: used as a notation on the copy of a letter or other document sent to a third person without the addressee's knowledge. Also

abbreviation for

Scuba Diving. buoyancy compensator.
British Columbia, Canada (approved for postal use).

B/C

bills for collection.

b.c.

⁴

or B.C.

abbreviation for

before Christ (used in indicating dates).

B.C.

⁵

abbreviation for

Bachelor of Chemistry.
Bachelor of Commerce.
bass clarinet.
battery commander.
British Columbia.

abbreviation for

AlsoB.C. (indicating years numbered back from the supposed year of the birth of Christ) before Christ Compare AD
in 54 bc Caesar came
British Columbia

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Usage Note

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. a.d. ¹

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