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officer of the guard

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noun Military.
  1. 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.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for officer of the guard

Historical Examples

  • 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.

    Found in the Philippines

    Charles King

  • Rafferty told me Mr. Lanier was officer-of-the-guard, and everybody else was at the dance.

British Dictionary definitions for officer of the guard

officer of the guard

noun
  1. a junior officer whose duty is to command a ceremonial guardAbbreviation: OG
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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