Install dictionaries-common-dev by entering the following commands in the terminal:
sudo apt update sudo apt install dictionaries-common-dev
spelling dictionaries - developer files
This package provides the full text of the Debian Spelling Dictionaries and Tools Policy, and some debhelper-like helpers. . It is only of interest for developers maintaining wordlists or dictionaries for Ispell, Aspell, or MySpell/Hunspell.