on 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.

“Nature here is so strong that one has to be on one’s guard to not be absorbed by it,” wrote Dodge.

From Los Angeles Times • Feb. 16, 2023

It has sniffed at such examples as "directives" for orders, "alerted" for being put on one's guard, "dis-O.K." for withdrawing approval, "deactivate" for abolishing.

From Time Magazine Archive

It is necessary to be on one’s guard against what one hears, as I verified yesterday in a particular case.

From The Greville Memoirs A Journal of the Reigns of King George IV and King William IV, Vol. III by Greville, Charles

One must be on one's guard with such as you.'

From Wilfrid Cumbermede by MacDonald, George

To which the other answered affirmatively and said that one must be on one's guard against him.

From The German Classics, v. 20 Masterpieces of German Literature by Various