限界（げんかい、genkai）
- limit

The Japanese word 限界 (げんかい) means "limit," "bound," "restriction," "threshold," or "the point of no return." It signifies the furthest extent or the utmost degree that something can reach or achieve. This can apply to various contexts, including physical abilities, resources, time, or capabilities. It often implies a point beyond which further progress or extension is impossible. 限界

⚫︎体力限界 Translation: Physical limit/endurance limit ⚫︎時間の限界 Translation: Time limit ⚫︎このプロジェクトの予算には限界があります。 Translation: There is a limit to the budget for this project.

You can use 限界 in many situations to describe a boundary or a point of restriction. ⚫︎When discussing personal or physical 限界, such as fatigue or endurance. ⚫︎When talking about resource limitations, like money, time, or space. ⚫︎When describing the maximum capacity or ability of something. ⚫︎You can use it formally or informally.

⚫︎限界 is primarily written using the kanji 限界. ⚫︎The reading is げんかい in hiragana. ⚫︎There is no variation in the okurigana. ⚫︎It is not typically written in katakana.

⚫︎制限(せいげん) - limitation, restriction ⚫︎限度(げんど) - limit, bound ⚫︎リミット (rimitto) - limit (loanword) ⚫︎範囲(はんい) - range, scope ⚫︎末端(まったん) - the end, the limit, the edge

⚫︎無限(むげん) - infinity, unlimited ⚫︎無制限(むせいげん) - unlimited, unrestricted ⚫︎解放(かいほう) - liberation, release (can imply removing limits)

もう限界だ。これ以上は無理。 ・Translation: I'm at my limit. I can't do any more. ・Explanation: This sentence expresses the speaker's personal 限界 in terms of their ability or endurance.

この機械の性能には限界がある。 ・Translation: There is a limit to the performance of this machine. ・Explanation: This sentence indicates that the machine's capabilities are restricted or bound by a certain level.

The word 限界 is a compound word formed from two kanji: ⚫︎限(げん) - meaning "limit," "bound," "restriction" ⚫︎界(かい) - meaning "boundary," "world," "sphere," "realm" Together, they form the concept of a boundary or limit.