Install aspell-pt-pt by entering the following commands in the terminal:
sudo apt update sudo apt install aspell-pt-pt
Description:
European Portuguese dictionary for GNU Aspell
This package contains all the required files to add support for the European Portuguese language to the GNU Aspell spell checker.
Homepage: http://natura.di.uminho.pt/wiki/index.cgi?Myspell
Version: 20091013-12
Section: universe/text