- Traditional Chinese Character(HanT):
一九九一
- Simplified Chinese Character(HanS):
一九九一
- Bopomofo(Mandarin Phonetic Symbols): ㄧ ㄐㄧㄡˇ ㄐㄧㄡˇ ㄧ (ㄧㄐㄐㄧ)
- Bopomofo(Zhuyin Keyboard Input/IME): "u ru.3ru.3u " (uru.3ru.3u)
- 「一九九一」的漢語拼音: Yi1 Jiu3 Jiu3 Yi1
- (ASCII) Hanyu Pinyin: "yijiujiuyi" "Yi1Jiu3Jiu3Yi1" "Yi1 Jiu3 Jiu3 Yi1" (YJJY)
- (Latin) Hànyǔ Pīnyīn: YīJiǔJiǔYī [ Yī Jiǔ Jiǔ Yī ]
- (英文翻譯) English Translation: "Nineteen ninety-one"
- (西語翻譯) Traducción Español: "1991"
- (日文翻譯) 日本語翻訳: "一九九一"