This property defines the Unicodes which are used for positions before and after a Zero Width Joiner character
Characters like , etc. are listed under Zero Width Joiner Word Break.
1 Characters are present in Zero Width Joiner Word Break starting with the Unicode point U+200D that represents the character .
Currently, as per latest version 15.0.0, Unicode supports 19 number of Word Break. Here are a few examples - Carriage Return,Double Quote,Exclamation, etc.