altair altai mountains • Altair · · · Info · Definitions · Characters · · altair · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) double star 15.7 light years from Earth; the brightest star in the Aquila constellation. Synonyms: Altair. · · Noun Definition 1 Characters · · a latin small letter a U+0061 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074