Black flag Meaning, Definition & Usage

  1. noun a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship
    Jolly Roger; blackjack; pirate flag.

WordNet


Definitions
  1. . See under Black.
Definitions
  1. the flag of a pirate, often bearing in white a skull and crossbones; a signal of defiance.

Webster 1913