issus issuing • ist · · · Info · Definitions · Characters · · issus · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) a battle (333 BC) in which Alexander the Great defeated the Persians under Darius III. Synonyms: Issus, battle of Issus. · · Noun Definition 1 Characters · · i latin small letter i U+0069 s latin small letter s U+0073 u latin small letter u U+0075