id,value,note 1,Hel​lo,zero-width space inside word 2,​Lead​ing,leading + internal ZWSP 3,Trail​,trailing ZWSP 4,a‌b‍c,ZWNJ and ZWJ 5,‎Marked‏,LTR + RTL marks bracketing 6,co­operate,soft hyphen 7,no⁠break,word joiner