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
And of course Wendy tells Nibs the truth, putting them both on guard against the manipulations of their seemingly benevolent guardians.
—
Alan Sepinwall, Rolling Stone, 9 Sep. 2025
Such a move would never be tolerated or accepted by a footballing environment that remains deeply suspicious of commercialism and militantly on guard against any move in that direction.
—Sebastian Stafford-Bloor, New York Times, 20 Aug. 2025
Operators are also on guard against wildfires.
—Bloomberg, Mercury News, 20 Aug. 2025
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
See All Example Sentences for on guard against
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Alan Sepinwall, Rolling Stone, 9 Sep. 2025
Such a move would never be tolerated or accepted by a footballing environment that remains deeply suspicious of commercialism and militantly on guard against any move in that direction.
—Sebastian Stafford-Bloor, New York Times, 20 Aug. 2025
Operators are also on guard against wildfires.
—Bloomberg, Mercury News, 20 Aug. 2025
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
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 16 Sep. 2025.
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