- Traditional Chinese Character(HanT):
知彼知己
- Simplified Chinese Character(HanS):
知彼知己
- Bopomofo(Mandarin Phonetic Symbols): ㄓ ㄅㄧˇ ㄓ ㄐㄧˇ (ㄓㄅㄓㄐ)
- Bopomofo(Zhuyin Keyboard Input/IME): "5 1u35 ru3" (51u35ru3)
- 「知彼知己」的注音符號/「知彼知己」怎麼發音怎麼唸: ㄓ ㄅㄧˇ ㄓ ㄐㄧˇ
- (ASCII) Hanyu Pinyin: "zhibizhiji" "Zhi1Bi3Zhi1Ji3" "Zhi1 Bi3 Zhi1 Ji3" (ZBZJ)
- (Latin) Hànyǔ Pīnyīn: ZhīBǐZhīJǐ [ Zhī Bǐ Zhī Jǐ ]