- before Christ (used in indicating dates).
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
- Bachelor of Chemistry.
- Bachelor of Commerce.
- bass clarinet.
- battery commander.
- British Columbia.
or B and C
- Insurance. building and contents.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Word Origin and History for b.c.
abbreviation of Before Christ, in chronology, attested by 1823. The phrase itself, Before Christ, in dating, with exact years, is in use by 1660s.
Online Etymology Dictionary, © 2010 Douglas Harper
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.