内ない通つう

noun, noun or participle which takes 'suru', intransitive verb

secret communication with the enemy; collusion; betrayal

Refers to secretly communicating with an opposing side, often in contexts of war, politics, or business, implying betrayal of one's own group.

• 彼かれは敵てきと内ない通つうしていた疑うたがいで逮たい捕ほされた。

  He was arrested on suspicion of having secretly communicated with the enemy.

• 内ない通つう者しゃが組そ織しきの情じょう報ほうを外がい部ぶに流ながした。

  A mole leaked the organization's information to the outside.

noun, noun or participle which takes 'suru', intransitive verb

adultery; extramarital affair

A dated or literary term for adultery; modern Japanese more commonly uses 不倫 or 浮気.

• 古ふるい小しょう説せつでは、妻つまの内ない通つうが悲ひ劇げきの原げん因いんとして描えがかれることがある。

  In old novels, a wife's adultery is sometimes depicted as the cause of a tragedy.