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black flag

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noun
a pirate flag, usually of black cloth with a white skull and crossbones on it; Jolly Roger.
a flag having two yellow and two black squares, signifying the letterL in the International Code of Signals: formerly so called when used by itself to indicate the presence of cholera on board a vessel.
a signal given to an automobile racing driver to stop, usually because the car may have a dangerous problem that requires inspection.
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SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
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Question 1 of 6
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Also called blackjack (for defs. 1, 2).

Origin of black flag

First recorded in 1585–95
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use black flag in a sentence

British Dictionary definitions for black flag

black flag

noun
another name for the Jolly Roger
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
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