JMdict: 1528310

密通 【みっつう】

  1. [n,vs,vi] adultery; illicit intercourse
  2. [n,vs,vi] secret communication (e.g. with the enemy)
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
Secrecy, Density (pop), Minuteness, Carefulness ミツ ひそ.か
Traffic, Pass Through, Avenue, Commute, Counter For Letters, Notes, Documents, Etc. ツウ, ツ とお.る, とお.り, -とお.り, -どお.り, とお.す, とお.し, -どお.し, かよ.う