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.

Jonathan Romain, the former rabbi of Maidenhead synagogue in Berkshire, now regularly spends his Shabbat mornings standing outside it on guard duty.

From BBC • May 2, 2026

Still, banks also flagged plenty of reasons to be on guard.

From The Wall Street Journal • Apr. 15, 2026

These days, on guard feels like the default mode.

From Barron's • Apr. 6, 2026

An extreme heat warning remains in place for most inland areas — and a heat advisory for coastal regions — through Friday, with officials urging people to be on guard for signs of heat-related illness.

From Los Angeles Times • Mar. 19, 2026

Still, it’s tiring to always be on guard, always peering out the window, looking over my shoulder.

From "The Queen of Water" by Laura Resau