- Traditional Chinese Character(HanT):
IO
- Simplified Chinese Character(HanS):
IO
- Bopomofo(Mandarin Phonetic Symbols): ㄞ ㄡ (ㄞㄡ)
- Bopomofo(Zhuyin Keyboard Input/IME): "9 . " (9.)
- 「IO」的注音符號/「IO」怎麼發音怎麼唸: ㄞ ㄡ
- (ASCII) Hanyu Pinyin: "aiou" "Ai1Ou1" "Ai1 Ou1" (AO)
- (Latin) Hànyǔ Pīnyīn: [ ]
- (英文翻譯) English Translation: "-O"
- (西語翻譯) Traducción Español: "-O"
- (日文翻譯) 日本語翻訳: "-O"