Definitions for jack-knife

This page provides all possible meanings and translations of the word jack-knife


  1. jack-knife(Noun)

    A compact folding knife.

    He kept a jack-knife in his pocket for various tasks.

  2. jack-knife(Noun)

    The front-dive pike, in which the body folds and unfolds.

    It took me hundreds of dives to master even the simple jackknife

  3. jack-knife(Verb)

    To fold in the middle, as a jackknife does.

    The cat jackknifed in the air and landed gracefully on its feet.

  4. jack-knife(Verb)

    To cause a semi-trailer truck to fold like a jackknife in a traffic accident.

Translations for jack-knife

Kernerman English Multilingual Dictionary


a large folding knife.

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