JACKKNIFE

jackknife

(noun) a dive in which the diver bends to touch the ankles before straightening out

jackknife

(verb) dive into the water bending the body at the waist at a right angle, like a jackknife

Source: WordNet® 3.1


Noun

jackknife (plural jackknives)

Alternative spelling of jack-knife

(statistics) A resampling method that applies estimators to all subsamples that each omit a single different group (possibly of a single datapoint) of the original sample to provide a sample distribution of the estimate.

Synonyms

• (statistics): leave-one-out

Verb

jackknife (third-person singular simple present jackknifes, present participle jackknifing, simple past and past participle jackknifed)

Alternative spelling of jack-knife

Source: Wiktionary


Jack"knife`, n.

Definition: A large, strong clasp knife for the pocket; a pocket knife.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

12 May 2025

UNSEASONED

(adjective) not tried or tested by experience; “unseasoned artillery volunteers”; “still untested in battle”; “an illustrator untried in mural painting”; “a young hand at plowing”


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Coffee Trivia

Brazil is the largest coffee producer in the world. Each year Brazil exports more than 44 million bags of coffee. Vietnam follows at exporting over 27 million bags each year.

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