1. Music. basso continuo.

  2. 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 bcc

Other definitions for BC (2 of 5)


  1. Scuba Diving. buoyancy compensator.

  2. British Columbia, Canada (approved for postal use).

Other definitions for b.c. (3 of 5)


  1. before Christ (used in indicating dates).

usage note For b.c.

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.1

Other definitions for B/C (4 of 5)


  1. bills for collection.

Other definitions for B.C. (5 of 5)


  1. Bachelor of Chemistry.

  2. Bachelor of Commerce.

  1. bass clarinet.

  2. battery commander.

  3. British Columbia.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use bc in a sentence

  • If the learned men of China can be trusted, the grape-vine must have been known in their country more than a thousand years B. C.

    The Art of Drinking | Georg Gottfried Gervinus
  • Let those who are fit for nothing else go and drone over A B C with ragged children, if they like.

    The Daisy Chain | Charlotte Yonge
  • This must refer to an octave scale of the form b c d e f g a b, consisting of the two tetrachords b-e and e-a, and the tone a-b.

    The Modes of Ancient Greek Music | David Binning Monro
  • That is to say, the tetrachord b c d e is not written , but : and d  e♭ f g is not , but .

    The Modes of Ancient Greek Music | David Binning Monro
  • That we are able from the hypothesis to deduce the known facts, gives only the affirmative instance, A B C, a b c.

British Dictionary definitions for BC


abbreviation for
  1. Also: B.C. (indicating years numbered back from the supposed year of the birth of Christ) before Christ: in 54 bc Caesar came Compare AD

  2. British Columbia

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for B.C.


An abbreviation used with dates of events that took place before the birth of Jesus. b.c. stands for before Christ. (Compare a.d.; see b.c.e.)

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.