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

Inflationary pressures in Japan could heighten as flight-to-safety demand for the dollar pushes the yen toward 160, the threshold that puts traders on guard for potential government intervention.

From The Wall Street Journal • Mar. 19, 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. 18, 2026

Traders remain on guard about developments in the tech space as they worry that the hundreds of billions firms have pumped into AI may not see any returns for some time.

From Barron's • Feb. 11, 2026

Always, as they fed, one of their number was on guard, its head erect and snakelike.

From "The Once and Future King" by T. H. White