The kanji 門 represents a "gate" or "door," a structure that allows entry or exit. It signifies an entrance, a gateway, or a portal, and by extension, can also refer to a family or house, representing the entrance to a household.

・On-yomi (音読み): モン (mon) ・Kun-yomi (訓読み): かど (kado)

⚫︎ 専門 (せんもん - senmon) Translation: Speciality; field of study ⚫︎ 正門 (せいもん - seimon) Translation: Main gate ⚫︎ 入門 (にゅうもん - nyuumon) Translation: Introduction; entrance (to a field)

The kanji 門 is a pictograph. It depicts the shape of a double-leafed gate. The two vertical strokes represent the gateposts, and the horizontal line above connects them, forming the lintel. The two curved strokes inside show the gate leaves or doors. Over time, the form has simplified, but the essential image of a gate remains.