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.
But when one is specially invited to be candid, one is naturally set upon one's guard.
From Doctor Thorne by Trollope, Anthony
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
Still, one must be always upon one's guard!
From Up the Hill and Over by Mackay, Isabel Ecclestone
It is well to be upon one's guard.
From Old Kensington by Thackeray, Miss
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
