Definition of 'on guard'
Example sentences containing 'on guard'
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Not long after they arrived in Washington the regiment suffered its first casualties when two men were wounded while on guard duty. THE HUNTING OF MAN (2004)Suddenly we were being preached at, and I felt myself go back on guard. Christianity Today (2000)I haven't worked for more than a year and haven't gone on guard in about three. Times, Sunday Times (2009)
Definition of on guard from the Collins English Dictionary
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