Definition of jackknife - Reverso English Dictionary
Noun
1.
toolUS folding pocket knife with one or more bladesUS
- He used his jackknife to cut the rope..
2.
divingUS dive bending at the waistUS
- She performed a perfect jackknife off the board.
3.
mathematicsTECH. US resampling method in statisticsTECH. US
- The jackknife was used to estimate the variance.
Verb
1.
transportationUS lose control causing the trailer to swingUS
- The truck jackknifed on the icy road.
2.
sportsUS perform a dive bending at the waistUS
- She jackknifed into the pool gracefully.
Images of jackknife

folding pocket knife with one or more blades
Expressions with jackknife
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marine shellfish with a long narrow shell
The jackknife clam buries itself in the sand.
black-and-white fish with a long dorsal fin
The jackknife-fish swam gracefully through the coral reef.
Origin of jackknife
English, jack (man) + knife (blade)
Terms with jackknife included in their meaning
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marine life
Atlantic jackknife clam with long curved shell
movement
bending or doubling over like a jackknife
Examples of jackknife in a sentence
The jackknife was a gift from his grandfather. The jackknife was her signature move in competitions. He attempted a jackknife but lost his balance. Researchers applied the jackknife to refine their model. The jackknife method improved the accuracy of the results. The driver jackknifed during the sudden storm.
The van jackknifed, blocking the entire lane. He jackknifed off the diving board with precision. The diver jackknifed perfectly during the competition.
View all translations of jackknife
Click below to see the appropriate translations facing each meaning.
- French:canif, déraper, ...
- German:Taschenmesser, schleudern, ...
- Italian:coltellino tascabile, sbandare, ...
- Spanish:navaja, descontrolarse, ...
- Portuguese:canivete, descontrolar-se, ...
- Chinese:折叠刀, 失控打滑, ...
- Japanese:折りたたみナイフ, ジャックナイフ現象を起こす, ...
- Arabic:سكين جيب, اِنْحَرَفَ, ...
- Hebrew:אוֹלָר, לְהִתְקַפֵּל, ...
- Russian:складной нож, заносить, ...
- Ukrainian:складаний ніж, заносити, ...
- Hindi:जेब चाकू, अनियंत्रित होना, ...
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