The kanji character 門 means "gate," "door," or "entrance." It represents a physical structure used for entry and exit, and by extension, can also refer to related concepts like a "doorway," a "family line," or "a specialized field or area."

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

⚫︎ 正門 (せいもん) Translation: Main gate; front gate ⚫︎ 専門 (せんもん) Translation: Speciality; field of expertise ⚫︎ 入門 (にゅうもん) Translation: Introduction; entering (a field or domain)

The kanji 門 is a pictograph. It depicts the shape of a gate or a double-door entrance. The two vertical lines represent the gateposts, and the horizontal line above indicates the lintel or the top part of the gate. This visual representation directly conveys the meaning of "gate" or "door." Over time, the character evolved, but the fundamental structure reflecting a gate remains.