blackjack

[ blak-jak ]
/ ˈblækˌdʒæk /
SEE SYNONYMS FOR blackjack ON THESAURUS.COM

noun

verb (used with object)

to strike or beat with a blackjack.
to compel by threat.

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to waver in mind or opinion; be indecisive or irresolute.
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Origin of blackjack

First recorded in 1505–15; black + jack1

Words nearby blackjack

Black, Hugo, black humor, black ice, blacking, Black Isle, blackjack, black japan, black kite, black knight, black knot, black land
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Words related to blackjack

intimidate, pressure, force, influence, threaten

Example sentences from the Web for blackjack

British Dictionary definitions for blackjack (1 of 5)

blackjack1
/ (ˈblækˌdʒæk) mainly US and Canadian /

noun

a truncheon of leather-covered lead with a flexible shaft

verb

(tr) to hit with or as if with a blackjack
(tr) to compel (a person) by threats

Word Origin for blackjack

C19: from black + jack 1 (implement)

British Dictionary definitions for blackjack (2 of 5)

blackjack2
/ (ˈblækˌdʒæk) /

noun cards

pontoon or any of various similar card games
the ace of spades

Word Origin for blackjack

C20: from black + jack 1 (the knave)

British Dictionary definitions for blackjack (3 of 5)

blackjack3
/ (ˈblækˌdʒæk) /

noun

a dark iron-rich variety of the mineral sphalerite

Word Origin for blackjack

C18: from black + jack 1 (originally a miner's name for this useless ore)

British Dictionary definitions for blackjack (4 of 5)

blackjack4
/ (ˈblækˌdʒæk) /

noun

a small oak tree, Quercus marilandica, of the southeastern US, with blackish bark and fan-shaped leavesAlso called: blackjack oak

Word Origin for blackjack

C19: from black + jack 1 (from the proper name, popularly used in many plant names)

British Dictionary definitions for blackjack (5 of 5)

blackjack5
/ (ˈblækˌdʒæk) /

noun

a tarred leather tankard or jug

Word Origin for blackjack

C16: from black + jack ³
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012