from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A black flag bearing the emblematic white skull and crossbones of a pirate ship.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. the traditional flag used on European and American pirate ships; often pictured as a white skull and crossbones on a black field; the blackjack
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship
Origin unknown.(American Heritage® Dictionary of the English Language, Fourth Edition)