What is Klei?
1.
a way to describe anything visually stunning, beautiful, breathtaking, amazing, and all positive words that are used to describe a visual image. (this word is mainly used to describe people) (can be used to describe both men and women)
you look rather "klei" today
See
2.
The language and writing system created to guard Ardamian secrets.
The infiltrators could not read the document, for it was written in Klei.