- Traditional Chinese Character(HanT):
愛快
- Simplified Chinese Character(HanS):
爱快
- Bopomofo(Mandarin Phonetic Symbols): ㄞˋ ㄎㄨㄞˋ (ㄞㄎ)
- Bopomofo(Zhuyin Keyboard Input/IME): 94dj94
- (ASCII) Hanyu Pinyin: "aikuai" "Ai4Kuai4" "Ai4 Kuai4" (AK)
- (Latin) Hànyǔ Pīnyīn: Kuài [ Kuài ]