signal flag signal fire • signal gong · · · Info · Definitions · Synonyms · Characters · · signal flag · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a rectangular piece of fabric used as a signalling device. Synonyms: flag, signal flag. · · Noun Definition 1 Synonyms · · · flag · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E s latin small letter s U+0073