Install wbulgarian by entering the following commands in the terminal:
sudo apt update sudo apt install wbulgarian
Description:
Bulgarian dictionary words for /usr/share/dict
This package contains an alphabetic list of Bulgarian words, provided in the file /usr/share/dict/bulgarian. This list can be used by spelling checkers, and by programs such as look(1).
Homepage: http://bgoffice.sourceforge.net/
Version: 4.1-3ubuntu1
Section: text