black-jack

blackjack

[blak-jak]
noun
1.
a short, leather-covered club, consisting of a heavy head on a flexible handle, used as a weapon.
2.
Cards.
a.
twenty-one ( def 4 ).
b.
Also called natural. (in twenty-one) an ace together with a ten or a face card as the first two cards dealt.
c.
a variety of twenty-one in which any player can become dealer.
3.
black flag ( defs 1, 2 ).
4.
a small oak, Quercus marilandica, of the eastern U.S., having a nearly black bark and a wood of little value except for fuel.
5.
a large drinking cup or jug for beer, ale, etc., originally made of leather coated externally with tar. Compare bombard ( def 7 ).
6.
caramel or burnt sugar for coloring spirits, vinegar, coffee, etc.
7.
Mineralogy. a dark, iron-rich variety of sphalerite.
verb (used with object)
8.
to strike or beat with a blackjack.
9.
to compel by threat.

Origin:
1505–15; black + jack1

Dictionary.com Unabridged

Pershing

[pur-shing or for 2, -zhing]
noun
1.
John Joseph ("Blackjack") 1860–1948, U.S. general: commander of the American Expeditionary Forces in World War I.
2.
Military.
a.
a 46-ton (42 metric tons) U.S. heavy tank of 1944–52, with a five-man crew and a 90mm gun.
b.
a two-stage surface-to-surface ballistic missile.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
blackjack1 (ˈblækˌdʒæk)
 
n
1.  a truncheon of leather-covered lead with a flexible shaft
 
vb
2.  (tr) to hit with or as if with a blackjack
3.  (tr) to compel (a person) by threats
 
[C19: from black + jack1 (implement)]

blackjack2 (ˈblækˌdʒæk)
 
n
1.  pontoon or any of various similar card games
2.  the ace of spades
 
[C20: from black + jack1 (the knave)]

blackjack3 (ˈblækˌdʒæk)
 
n
a dark iron-rich variety of the mineral sphalerite
 
[C18: from black + jack1 (originally a miner's name for this useless ore)]

blackjack4 (ˈblækˌdʒæk)
 
n
Also called: blackjack oak a small oak tree, Quercus marilandica, of the southeastern US, with blackish bark and fan-shaped leaves
 
[C19: from black + jack1 (from the proper name, popularly used in many plant names)]

blackjack5 (ˈblækˌdʒæk)
 
n
a tarred leather tankard or jug
 
[C16: from black + jack³]

Pershing1 (ˈpɜːʃɪŋ)
 
n
John Joseph, nickname Black Jack. 1860--1948, US general. He was commander in chief of the American Expeditionary Force in Europe (1917--19)

Pershing2
 
n
a US ballistic missile capable of carrying a nuclear or conventional warhead

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

blackjack
used in many senses since 16c., earliest is possibly "tar-coated leather jug for beer" (1590s), from black + jack in any of its many slang senses. The weapon so called from 1889; the card game by 1910.
Online Etymology Dictionary, © 2010 Douglas Harper
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