Definition of "COB"

(US, military) Initialism of contingency operating base.

(military) Acronym of chief of boat.

Initialism of close of business; the end of day on a business day.  quotations  examples

Coordination of Benefits  examples

Chairman of the Board  examples

Chip on Board  examples

Clive's Original Band, band started by Clive Palmer after he left The Incredible String Band.  examples

(sports) Abbreviation of Cobourg.  examples