JMdict: 1599240

同士討ち 【どうしうち】

  1. [n] friendly fire; killing each other by mistake
  2. [n] internecine strife
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
同 Same, Agree, Equal ドウ おな.じ 2
士 Gentleman, Scholar, Samurai, Samurai Radical (no. 33) シ さむらい 4
討 Chastise, Attack, Defeat, Destroy, Conquer トウ う.つ 6