- a military assignment involving watching over or protecting a person or place or supervising prisoners.
Origin of guard duty
First recorded in 1890–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for guard duty
Every fellow can go on guard-duty for two hours, and call the next fellow.Dave Porter At Bear Camp
The general himself was the only one who had been exempt from guard-duty.Military Reminiscences of the Civil War V2
Jacob Dolson Cox
The Federal soldier seated on the sand-bags is on guard-duty to prevent camp-followers from looting the vacant fort.The Civil War Through the Camera
Henry W. (Henry William) Elson
But it happened that Ildiger and his men were keeping guard at that time; for all were assigned by turns to guard-duty.Procopius
Guard-duty injures them more than whites, apparently; and double-quick movements, in choking dust, set them coughing badly.