"JI" is a term that may have a limited number of synonyms. One possible synonym could be "name", as it is often used as a reference to a person's name in some languages. Other potential synonyms could include "nickname" or "moniker", as JI can be seen as a shorthand way of identifying someone. Additionally, in some contexts, "handle" or "alias" might be used as synonyms for JI, particularly in online communities where people may use pseudonyms. However, it's also possible that in certain languages or cultures, there are no precise synonyms for JI, and the term may only be used within a specific context or group.