on guard against

idiom

: alert and ready to respond to possible danger, threats, problems, etc.
We need to be on guard against attack.

Dictionary Entries Near 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 4 Feb. 2023.

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