What is the meaning of black flag?

A flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship.
- synonyms: pirate flag, Jolly Roger, blackjack

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APA	WordNet. (2010). black flag. Retrieved September 20, 2026, from http://smartdefine.org/black_flag/definitions/1201815
Chicago	WordNet. 2010. "black flag" http://smartdefine.org/black_flag/definitions/1201815 (accessed September 20, 2026).
Harvard	WordNet 2010, black flag, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/black_flag/definitions/1201815>.
MLA	WordNet. "black flag" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/black_flag/definitions/1201815>

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