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   Jack·knife

   /ˈjakˌnīf/

   

   noun

   • 1. a knife with a folding blade.
   • 2. a dive in which the body is first bent at the waist and then straightened.
   • 3. a method of assessing the variability of data by repeating a calculation on the sets of data obtained by removing one value from the complete set.

   verb

   • 1. move one's body into a bent or doubled-up position: "she jackknifed into a sitting position"
   • ▪ (of an articulated vehicle) bend into a V-shape in an uncontrolled skidding movement.
   • ▪ (of a diver) perform a jackknife.

   Scrabble Points: 29

   • J

     8

   • A

     1

   • C

     3

   • K

     5

   • K

     5

   • N

     1

   • I

     1

   • F

     4

   • E

     1

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