The kanji 密 means "secret," "close," "dense," or "intimate." It suggests something hidden, not easily accessible, or packed together tightly. It can also imply a close relationship or a state of being very concentrated.

・On-yomi (音読み): ミツ (mitsu) ・Kun-yomi (訓読み): ひそ（か）(hisoka)

⚫︎秘密 (himitsu) Translation: Secret ⚫︎密集 (misshuu) Translation: Density; congestion; concentration ⚫︎親密 (shinmitsu) Translation: Intimacy; familiarity

The kanji 密 is a phono-semantic compound. The left side is 山 (san), which means "mountain." The right side is 必 (hitsu), which means "certainly" or "must." Together, the character suggests something hidden or enclosed, like a mountain cave, thus relating to the concept of "secret" or "close." The original meaning was related to the close and dense growth of vegetation in a mountain.