- Traditional Chinese Character(HanT):
凹凸
- Simplified Chinese Character(HanS):
凹凸
- Bopomofo(Mandarin Phonetic Symbols): ㄠ ㄊㄨ (ㄠㄊ)
- Bopomofo(Zhuyin Keyboard Input/IME): "l wj " (lwj)
- (ASCII) Hanyu Pinyin: "aotu" "Ao1Tu1" "Ao1 Tu1" (AT)
- (Latin) Hànyǔ Pīnyīn: Tū [ Tū ]
- (英文翻譯) English Translation: "Concave and convex"
- (西語翻譯) Traducción Español: "Cóncavo y convexo"
- (日文翻譯) 日本語翻訳: "凹凸"