‘Official’ can be for anything that’s been approved by someone with authority, or made by one. “It’s official, they’re getting married.” ‘Formal’ is can be used in the same way sometimes “I will issue a …
official Official is more formal than something that is formal. Possible example: Official: Hello sir/mam Formal: Hello Informal: Hi|"Official" has to do with something that is given legitimacy by a …
