This property defines the Unicodes which have Khmer (Cambodian) script
Characters like ក,ខ,គ, etc. are listed under Khmer (Cambodian) Script.
146 Characters are present in Khmer (Cambodian) Script starting with the Unicode point U+1780 that represents the character ក.
Currently, as per latest version 15.0.0, Unicode supports 164 number of Script. Here are a few examples - Adlam,Ahom,Anatolian Hieroglyphs, etc.