Imported from UserVoice
Author: Prof. Raimundo Nonato Ponciano
Original name: Colocar Dicionário de Corretor Ortográfico de Portugues Brasil.
In the version 9.3 of ONLYOFFICE editors, you can already select Portuguese - Brazil as the document language to enable spell-checking, and the icon with the checkmark and letter “A” indicates that this language is supported by the spell-check feature.
Please check this on your side and let us know whether everything works correctly for you now and whether this addresses your request.