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.
One must be so circumspect—so much upon one's guard with all the world.
From Tales and Novels — Volume 05 by Edgeworth, Maria
One grew accustomed to see an enemy in every stranger, and to be upon one's guard before a neighbor as before some lurking traitor.
From The Malady of the Century by Nordau, Max Simon
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)
It is well to be upon one's guard.
From Old Kensington by Thackeray, Miss
But when one is specially invited to be candid, one is naturally set upon one's guard.
From Doctor Thorne by Trollope, Anthony
