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Definitions from WordNet

Definitions from the Web

Term: jack-knifed

Part of Speech: Verb (past tense)

Definition: To fold or bend (something, especially a vehicle) in the shape of a jackknife; to cause (a vehicle) to fold or bend in this way due to loss of control.

Sample Sentence: The truck driver lost control on the icy road and jack-knifed the vehicle into the guardrail.

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Part of Speech: Adjective

Definition: Describing a folded or bent state, resembling the shape of a jackknife.

Sample Sentence: The jack-knifed blade of the pocket knife made it difficult to close.

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Part of Speech: Adjective

Definition: Referring to a situation or position where someone or something is trapped or unable to escape.

Sample Sentence: The fallen tree jack-knifed the hikers, blocking their path back to the trailhead.

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Part of Speech: Adverb

Definition: Describing a movement or action that resembles the folding or bending motion of a jackknife.

Sample Sentence: The gymnast gracefully and jack-knifed across the mat, impressing the judges with her flexibility.

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