flag day flag captain • flag down · · · Info · Definitions · Characters · · flag day · · Text Common · · Latin · · Scripts 8 · · Length 2 · · Syllables Definitions · · · (noun) commemorating the adoption of the United States flag in 1777. Synonyms: Flag Day, June 14. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 f latin small letter f U+0066 g latin small letter g U+0067 l latin small letter l U+006C y latin small letter y U+0079