Formal:
* Oficial: This is the most common and general translation for "official."
* Formal: This translates to "formal" and can also be used in some contexts where "official" is appropriate.
* Legal: This translates to "legal" and can be used when referring to something officially sanctioned by the law.
Other:
* Autorizado: This translates to "authorized" and can be used in situations where something has been officially approved.
* Reconhecido: This translates to "recognized" and can be used when something is officially acknowledged.
Example:
* "This is an official document." - "Este é um documento oficial."
* "The meeting was officially canceled." - "A reunião foi oficialmente cancelada."
* "The government has authorized the construction of the new bridge." - "O governo autorizou a construção da nova ponte."
The best translation will depend on the specific situation and the intended meaning.