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Synonyms & Antonyms of jackknife
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From the Editors at Merriam-Webster
7 Uncommonly Doubled Letters
7 Uncommonly Doubled Letters
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Last Updated
24 Feb 2020
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“Jackknife.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/jackknife. Accessed 31 Mar. 2020.
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Time Traveler for jackknife
The first known use of jackknife was in 1683
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