swear up and down

idiom

US
: to state (something) very strongly and sincerely : to insist
She swore up and down (that) she didn't do it.

Examples of swear up and down in a Sentence

Recent Examples on the Web
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The two men have been friends and colleagues for decades and swear up and down that this change is not the result of some internal power struggle. David Pierce, The Verge, 18 Apr. 2024 Southerners will swear up and down by a dish of Hoppin’ John to bring a year’s worth of good vibes. Emily Heil, Washington Post, 29 Dec. 2022

Dictionary Entries Near swear up and down

Cite this Entry

“Swear up and down.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/swear%20up%20and%20down. Accessed 3 Dec. 2024.

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