| Engelsk substantiv: blackjack | 
| 1. | blackjack (om plante) a common scrubby deciduous tree of central and southeastern United States having dark bark and broad three-lobed (club-shaped) leaves; tends to form dense thickets | 
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 | Ord med samme betydning (synonymer) | blackjack oak, jack oak, Quercus marilandica | 
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 | Mindre spesifikke uttrykk | scrub oak | 
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| 2. | blackjack (om gjenstand) a piece of metal covered by leather with a flexible handle; used for hitting people | 
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 | Ord med samme betydning (synonymer) | cosh, sap | 
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 | Mindre spesifikke uttrykk | bludgeon | 
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| 3. | blackjack (om gjenstand) a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship | 
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 | Ord med samme betydning (synonymer) | black flag, Jolly Roger, pirate flag | 
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 | Mindre spesifikke uttrykk | flag | 
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 | Omfatter disse spesifikke uttrykk | skull and crossbones | 
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| 4. | blackjack (om handling) a gambling game using cards; the object is to hold cards having a higher count than those dealt to the banker up to but not exceeding 21 | 
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 | Ord med samme betydning (synonymer) | twenty-one, vingt-et-un | 
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 | Mindre spesifikke uttrykk | card game, cards | 
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