on guard against
idiom
: alert and ready to respond to possible danger, threats, problems, etc.
We need to be on guard against attack.
Examples of on guard against in a Sentence
Recent Examples on the Web
Meanwhile, enterprises must also be on guard against the rapidly mounting threat from attacks fueled by agentic AI.
—
Pieter Danhieux, Forbes.com, 11 Aug. 2025
Disregard none of these when on guard against rain.
—Aratus, Harpers Magazine, 18 June 2025
But with policymakers still on guard against sticky price pressures, the central bank is expected to provide only limited borrowing-cost relief.
—Preston Fore, Fortune, 7 July 2025
With giant walls made from the nearby towering timber, the residents are on guard against the infected.
—Ben Travers, IndieWire, 7 Apr. 2025
See All Example Sentences for on guard against
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Pieter Danhieux, Forbes.com, 11 Aug. 2025
Disregard none of these when on guard against rain.
—Aratus, Harpers Magazine, 18 June 2025
But with policymakers still on guard against sticky price pressures, the central bank is expected to provide only limited borrowing-cost relief.
—Preston Fore, Fortune, 7 July 2025
With giant walls made from the nearby towering timber, the residents are on guard against the infected.
—Ben Travers, IndieWire, 7 Apr. 2025
See All Example Sentences for on guard against
Cite this Entry
“On guard against.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20guard%20against. Accessed 20 Aug. 2025.
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