upon one's guard

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Is it possible, under such circumstances, always to be upon one's guard?

From The Huguenot: (Volumes I-III) A Tale of the French Protestants. by James, G. P. R. (George Payne Rainsford)

Topt, to go out sharp, to be upon one’s guard.

From The Surprising Adventures of Bampfylde Moore Carew King of the Beggars; containing his Life, a Dictionary of the Cant Language, and many Entertaining Particulars of that Extraordinary Man by Unknown

It is well to be upon one's guard.

From Old Kensington by Thackeray, Miss

Their preoccupation spread around them an atmosphere of "constraint and ennui; one had to be upon one's guard and to check oneself."

From The Ancient Regime by Durand, John

To stand upon one’s guard against Death exasperates her malice and protracts our sufferings.

From Imaginary Conversations and Poems A Selection by Landor, Walter Savage