The kanji 禁 primarily conveys the idea of "prohibition," "ban," or "restriction." It signifies something that is not allowed or permitted, often due to a rule, law, or social custom. It emphasizes a denial of access, action, or use.

・On-yomi (音読み): キン (kin) ・Kun-yomi (訓読み): きん（じる） (kin(jiru) - to prohibit, forbid)

⚫︎ 禁煙（きんえん） Translation: No smoking; Prohibition of smoking. ⚫︎ 禁止（きんし） Translation: Prohibition; ban. ⚫︎ 立入禁止（たちいりきんし） Translation: Keep out; No entry.

The kanji 禁 is a phono-semantic compound (形声文字). The left side is a component representing a tree or wood (示 is considered as a variant of 木). The right side is a phonetic component, representing sound. The original meaning relates to wood-based objects, but it gradually expanded to the meaning of "prohibit". The tree or wood component is present because historically, wood was used to create tools and objects that could be restricted.