ace in the hole

phrase

Definition of ace in the holenext
as in factor
something (as a fact or argument) that is decisive or overwhelming The security camera footage was the ace in the hole for winning the case.

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of ace in the hole Republicans' ace in the hole While Democratic candidates dominate direct donations, Republicans are countering with overwhelming outside spending. — Luke Fountain, CNBC, 16 Oct. 2026 And when the bulls aren’t bugling, wallow hunting offers another ace in the hole when conventional methods won’t work. — Alex Robinson, Outdoor Life, 12 Aug. 2026

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Cite this Entry

“Ace in the hole.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/ace%20in%20the%20hole. Accessed 28 Oct. 2026.

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