制限（せいげん、seigen）
- limit

The Japanese word 制限 (せいげん, seigen) means "restriction," "limitation," "control," or "constraint." It refers to the act of setting a limit on something, preventing something from happening freely, or the condition of being restricted. It can apply to various contexts, such as time, quantity, ability, or access. The core idea is to impose a boundary or a rule that keeps something within a specific range or prevents it from exceeding a certain level. The word 制限 itself can also be used to refer to the limit or restriction itself.

⚫︎ 時間制限があります。 Translation: There is a time limit. ⚫︎ カロリーの制限を守っています。 Translation: I am following calorie restrictions. ⚫︎ 入場の制限があります。 Translation: There are admission restrictions.

You can use 制限 in formal and informal situations. It's a versatile word that can be applied in numerous scenarios to express the idea of setting boundaries or limitations. When talking about rules, regulations, or policies that impose limits, 制限 is a very common choice.

制限 is typically written with the kanji 制限 and read as せいげん. The kanji 制 means "to control" or "to restrain," and 限 means "limit." The hiragana reading is always used. There are no other common ways to write this word. The okurigana (送りがな, suffix hiragana) is fixed. The kanji form is the standard and most common way of writing it.

⚫︎ 規制 (きせい, kisei) - regulation, control. ⚫︎ 限定 (げんてい, gentei) - limitation, restriction. ⚫︎ 拘束 (こうそく, kousoku) - restraint, restriction. ⚫︎ 限界 (げんかい, genkai) - limit, bound. ⚫︎ 制約 (せいやく, seiyaku) - restriction, limitation.

⚫︎ 自由 (じゆう, jiyuu) - freedom, liberty. ⚫︎ 開放 (かいほう, kaihou) - opening, release. ⚫︎ 許可 (きょか, kyoka) - permission, approval. ⚫︎ 解放 (かいほう, kaihou) - liberation.

このアプリの使用には年齢制限があります。 ・Translation: There is an age restriction on the use of this app. ・Explanation: This sentence illustrates how 制限 applies to the scope of usage of the app. It means that the app is not for everyone, only for the people who meet the criteria.

交通制限のため、遅れました。 ・Translation: I was late due to traffic restrictions. ・Explanation: This sentence demonstrates how 制限 is used in the context of traffic rules or limitations.

The word 制限 is a compound word formed from two kanji: 制 (sei) and 限 (gen). 制 means "to control" or "to restrain," and 限 means "limit." Therefore, the etymology reflects the core meaning of imposing a control or boundary to limit something. This compound word originated in Chinese before being adopted into Japanese.