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up in arms

phrase

: aroused and ready to undertake a fight or conflict

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UPI
up in arms
up in the air
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Cite this Entry

“Up in arms.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/up%20in%20arms. Accessed 1 Jan. 2026.

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Last Updated: - Definition revised
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