Translation

内紛 / 不和 / 意見の対立

Meaning

Dissension is serious disagreement inside a group, especially when it causes tension or division. It is not just one different opinion; it suggests conflict among people who are supposed to work together. Do not confuse it with dissent, which can be a single act or opinion of disagreement.

Examples

• 新しい方針は委員会内に深刻な不和を生みました。
  The new policy created dissension within the committee.
• 党内の内紛が選挙戦を弱めました。
  Internal dissension weakened the party's campaign.