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officer of the guard

noun, Military
an officer, acting under the officer of the day, who is responsible for the instruction, discipline, and performance of duty of the guard in a post, camp, or station.
Abbreviation: OG, O.G. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for officer-of-the-guard
Historical Examples
  • Rafferty told me Mr. Lanier was officer-of-the-guard, and everybody else was at the dance.

    Lanier of the Cavalry Charles King
  • Then he hunted up a subaltern of his own grade whom he knew would probably be the detail for officer-of-the-guard that evening.

British Dictionary definitions for officer-of-the-guard

officer of the guard

a junior officer whose duty is to command a ceremonial guard OG
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
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