be on 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.
On top of that, we now have to be on guard at one of the most vulnerable moments of our careers.
From The Wall Street Journal • Apr. 16, 2026
Flynn warned that it’s safer “to be on guard for any outcome over the weekend” — although risk could go either way.
From MarketWatch • Feb. 6, 2026
The sense of fear is palpable in parts of northern Japan, where some locals have fastened bells to their bags hoping the noise will keep bears away, while signs warn people to be on guard.
From Barron's • Nov. 8, 2025
It’s something to which we are all susceptible, and against which we all must be on guard.
From Slate • May 21, 2025
Aunt Kitty was no dramatist, so when she got worked up, I knew I should be on guard.
From "The Detective's Assistant" by Kate Hannigan
