noun
Used for the peak or most intense point of a story, event, or process, similar to English 'climax'.
映画のクライマックスで涙が出た。
I cried at the climax of the movie.
交渉はクライマックスを迎えた。
The negotiations reached a climax.
絶頂 is a native Japanese word for 'peak' or 'zenith', often used for abstract states like power or pleasure, while クライマックス is a loanword specifically for the climactic point of a narrative or event.
Borrowed from English 'climax'.