- Traditional Chinese Character(HanT):
無底洞
- Simplified Chinese Character(HanS):
无底洞
- Bopomofo(Mandarin Phonetic Symbols): ㄨˊ ㄉㄧˇ ㄉㄨㄥˋ (ㄨㄉㄉ)
- Bopomofo(Zhuyin Keyboard Input/IME): j62u32j/4
- (ASCII) Hanyu Pinyin: "wudidong" "Wu2Di3Dong4" "Wu2 Di3 Dong4" (WDD)
- (Latin) Hànyǔ Pīnyīn: WúDǐDòng [ Wú Dǐ Dòng ]
- (英文翻譯) English Translation: "bottomless pit"
- (西語翻譯) Traducción Español: "pozo sin fondo"
- (日文翻譯) 日本語翻訳: "底なしの穴"