black flag blackfish oil • blackfly · · · Info · Definitions · Synonyms · Characters · · black flag · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) a flag usually bearing a white skull and crossbones on a black background; indicates a pirate ship. Synonyms: black flag, pirate flag, Jolly Roger, blackjack. · · Noun Definition 1 Synonyms · · · pirate flag · · Synonym 1 jolly roger · · Synonym 2 blackjack · · Synonym 3 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 f latin small letter f U+0066 g latin small letter g U+0067 k latin small letter k U+006B l latin small letter l U+006C