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COB (plural COBs)

  1. (US, military) Initialism of contingency operating base.
  2. (military) Acronym of chief of boat.
  3. Close of Business, usually referring to a deadline for an office in another time zone.
    NY office told the LA office to have report e-mailed by COB.
    • 1997, Broadcast Education Association (U.S.), Membership Directory:
      February 25, 1998  Exhibitor Deadline COB - Ad Copy Deadline COB - FINAL PROGRAM COPY DUE TO PROGRAM CHAIR (COB)
  4. Coordination of Benefits
  5. Chairman of the Board
  6. Chip on Board

Related termsEdit

Proper nounEdit


  1. Clive's Original Band, band started by Clive Palmer after he left The Incredible String Band.
  2. (sports) Abbreviation of Cobourg.