Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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jackknife

jack·knife

jackknife

 
pronunciation:
jaek naIf
features:
Word Combinations (noun)
part of speech: noun
inflections: jackknives
definition 1: a large pocketknife whose blade can be folded into the handle.
 
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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