black flag
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 letter L 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.
Also called
blackjack
(for defs 1, 2).
Origin of black flag
First recorded in 1585–95
Words nearby black flag
Example sentences from the Web for black flag
Knowing that we could not escape from her, the stranger openly showed his colors—the pirate's black-flag.
One hundred black-flag Taaisha, the Khalifa's own Baggara tribesmen and part of his body-guard, charged impetuously.
Khartoum Campaign, 1898 |Bennet Burleigh