How to say "treason" in Japanese

• 反逆はんぎゃくCommon
  noun, suru verb, intransitive verbCovers treason in its broad sense — betraying one's country, ruler, or superior — and extends to treachery and mutiny. The natural choice when 'treason' means disloyalty or betrayal rather than an organized rising against the state.
• 謀反むほんCommon
  noun, suru verb, intransitive verbCenters on rebellion, revolt, and insurrection; its 'treason' sense is treason of that kind — plotting or rising against the ruler or state. For plain betrayal or treachery, 反逆 is the word to reach for.

Use 反逆 for treason as betrayal of one's country, ruler, or superior (it also covers treachery and mutiny), and 謀反 when treason takes the form of rebellion, revolt, or insurrection against the state.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 反逆はんぎゃくtreason
• 謀反むほんrebellion
• 外患罪がいかんざいtreason
• 売国ばいこくselling out one's country
• 反逆罪はんぎゃくざい(crime of) treason
• 国家反逆罪こっかはんぎゃくざい(crime of) high treason