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jack·knife
 jackknife
- pronunciation:
- jaek
naIf
| part of speech: |
noun |
| inflections: |
jackknives |
| definition 1: |
a large pocketknife whose blade can be folded into the handle.
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| definition 2: |
a headfirst dive in which one bends at the waist in midair, touches one's feet, and then straightens out before reaching the water.
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| related words: |
knife |
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