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  1. Jackknife Definition & Meaning - Merriam-Webster

    jackknife
    ˈjak-ˌnīf
    noun
    1. a large strong pocketknife
    2. a dive executed headfirst in which the diver bends from the waist and touches the ankles while holding the knees unbent and then straightens out
  2. Jackknife - Wikipedia

  3. Jack Knife: Huge Selection - Fast Free Shipping - Deadwood Knives

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  5. Pocketknife - Wikipedia

  6. What is a Jack Knife? - Knife Wave

    Jul 11, 2023 · What is a Jack Knife? Jack knives are folding knives with blades that fold into the handles. Jack knives are popular among travelers who need a multipurpose cutting instrument because of their folding function. These …

  7. Jackknifing - Wikipedia

    Jackknifing is the folding of an articulated vehicle so that it resembles the acute angle of a folding pocket knife. Learn about the causes, effects, and prevention of jackknifing, as well as the difference between jackknifing and trailer swing.

  8. What Is a Jackknife? (with pictures) - WiseGEEK

    May 16, 2024 · A jackknife is a knife that can fold its blade inward when not in use. Learn how to use a jackknife for camping, carving, fishing and more, and how it was invented by Jacque de Liege in 1711.

  9. Jack Pocket Knives - Knife Country USA

    Shop for 20 different models of Jack pocket knives from leading brands like Case, Schrade, Rough Rider and more. Learn about the history, features and care of Jack knives, the two-bladed pocket knives with clip and pen blades.

  10. C. Risner "Ohio River Jack" Knife - C. Risner Cutlery LLC

    Sep 12, 2022 · A traditional modern slipjoint knife inspired by two Schatt&Morgan Cutlery knives. The name pays homage to the Ohio River and the design features one or two full length blades.

  11. Case Medium Jack Knives - Knife Works