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.

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. 19, 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

Though different from experiencing war as a child, I know the symptoms all too well: the extreme anxiety, hypervigilance – being constantly on guard against threats - flashbacks, nightmares, and depression.

From BBC • Dec. 29, 2025

He was like an early-warning radar, always on guard, always alert, and if that was all he did—watch the forest when I was outside—it would have been enough.

From This Side of Wild by Gary Paulsen