southeast asia south-east • southeast by east · · · Info · Definitions · Characters · · southeast asia · · Text Common · · Latin · · Scripts 14 · · Length 5 · · Syllables Definitions · · · (noun) a geographical division of Asia that includes Indochina plus Indonesia and the Philippines and Singapore. Synonyms: Southeast Asia. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075