規制（きせい、kisei）
- regulation

The Japanese word 規制 (きせい) primarily means "regulation," "control," "restriction," or "limitation." It refers to rules, laws, or measures put in place to manage or limit an activity, process, or behavior. It can apply to various contexts, from government policies and business practices to personal conduct. The core idea is to impose some sort of constraint. The word often suggests a formal or official control mechanism. The 規制 can be implemented to maintain order, protect people, or ensure fairness.

⚫︎ 交通規制 Translation: Traffic regulations ⚫︎ 輸出入規制 Translation: Import and export regulations ⚫︎ 価格規制 Translation: Price controls

You use 規制 in situations where you want to talk about rules, limitations, or constraints. It's suitable for formal contexts, discussions about laws, policies, and controlling certain activities. Think of it as a term for official or established limits. You can use this word when talking about government policies, business practices, or even societal norms. It is often used in news reports, official documents, and formal conversations. The word can be used with the verb する to create a form that means "to regulate", “to restrict”, or "to control". For example, 規制する (きせいする) means "to regulate".

規制 is typically written in kanji. The reading is きせい in hiragana. There is no other general way to write this word. The okurigana is standard, with the kanji 規制.

⚫︎ 制限（せいげん）：Limitation, restriction ⚫︎ 管理（かんり）：Management, control ⚫︎ 統制（とうせい）：Control, regulation (often used in a more strict or forceful sense) ⚫︎ 制限 can also mean 規制.

⚫︎ 自由（じゆう）：Freedom, liberty ⚫︎ 解放（かいほう）：Release, liberation ⚫︎ 緩和（かんわ）：Relaxation, easing (of restrictions)

政府は新しい環境規制を導入しました。 ・Translation: The government introduced new environmental regulations. ・Explanation: This sentence describes the government implementing new rules to control environmental practices.

この法律は、インターネット上の情報流通に規制をかけます。 ・Translation: This law puts restrictions on the flow of information on the internet. ・Explanation: This sentence refers to a law limiting something.

The word 規制 (きせい) is a compound word. The kanji 規 (き) means "rule," "standard," or "measure." The kanji 制 (せい) means "system," "control," or "regulation." Combining these two kanji creates the meaning of a system of rules or controls.