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Intermediate Dictionary
       

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 kind of dive in which a person bends in the air, touches his feet, and straightens out before reaching the water.
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