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知己知彼，百战不殆

zhī jǐ zhī bǐ , bǎi zhàn bù dàidictionary entry
DEFINITION CC-CEDICT
know yourself and know your enemy, and you will never be defeated (idiom, from Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sūn zǐ Bīng fǎ])
Sources & editorial notes

Reference definitions: CC-CEDICT contributors and MDBG, CC BY-SA 4.0. Source release 2026-10-27T01:55:52Z. Imported 2026-10-27. Definition wording and meaning order are retained. Recognized pronunciation references are displayed with tone marks; the original source record is available below.

Source record: cd-8ddc99e3e3799067. Source SHA-256: bbc4b27f26bee1a262f4d7939667a040c7857c7fc0200a2fa7a86d3352a09eae.

Original source entry:

知己知彼，百戰不殆 知己知彼，百战不殆 [zhi1 ji3 zhi1 bi3 , bai3 zhan4 bu4 dai4] /know yourself and know your enemy, and you will never be defeated (idiom, from Sunzi's "The Art of War" 孫子兵法|孙子兵法[Sun1 zi3 Bing1 fa3])/

Reference definitions and teaching material have separate provenance.

Reference information

The definitions above are from CC-CEDICT. Examples and usage notes are available on selected entries.

Character information

View the individual characters. Their meanings do not necessarily explain the meaning of the whole word.

Other forms in these source records: 知己知彼，百戰不殆

  • 知
    zhī

    to know / to be aware

  • 己
    jǐ

    self / oneself / sixth of the ten Heavenly Stems 十天干[shí tiān gān] / sixth in order / letter "F" or Roman "VI" in list "A, B, C", or "I, II, III" etc / hexa

  • 知
    zhī

    to know / to be aware

  • 彼
    bǐ

    that / those / (one) another

  • 百
    bǎi

    hundred / numerous / all kinds of

    Bǎi

    surname Bai

  • 战
    zhàn

    to fight / fight / war / battle

  • 不
    bù

    no / not so / (bound form) not / un-

  • 殆
    dài

    (literary) dangerous / perilous / (literary) almost / well-nigh

Reference definitions from CC-CEDICT.