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Definitions

jack

[jak] / dʒæk /
NOUN
sailor
Synonyms
STRONG
bluejacket boater cadet diver jack-tar lascar marine mariner mate middy navigator pilot pirate salt seafarer seaman shipmate swab tar tarpaulin windjammer
WEAK
able-bodied sailor circumnavigator deck hand hearty midshipman/woman old salt sea dog sea person shellback swabber swabbie water dog yachter
VERB
raise
Synonyms
STRONGEST
hoist shove
STRONG
boost construct elevate erect establish exalt heave hike jump lever lift mount promote pry rear up upcast upheave uplift upraise
WEAK
bring up hold up lift up move up place up pull up put on its end put up run up set up set upright stand up take up throw up uprear
Antonyms
STRONG
condemn decline decrease demote denounce depress destroy drop fall hurt lower raze ruin

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Core inflation came in hotter than expected this week, and higher oil prices are almost certainly going to jack up headline numbers.

From Barron's • Mar. 13, 2026

New jack swing made stars of Sweat, Al B. Sure!,

From Los Angeles Times • Feb. 18, 2026

He later relocated to the Luton area for work and described himself as a "jack of all trades, master of none", working in a variety of jobs including at Vauxhall and Luton Airport.

From BBC • Dec. 28, 2025

The conglomerates lure subscribers with low introductory prices, only to jack them up once a customer is inside their walled gardens.

From MarketWatch • Dec. 12, 2025

“I do,” said the man who’d started all the talk of dragons, a Braavosi oarsman in a somber woolen jack.

From "A Dance with Dragons" by George R. R. Martin

Vocabulary lists containing jack

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