"QuickDic" offline Dictionary App for Android. Provided downloadable dictionaries are based on Wiktionaries but can also be created from other sources (see DictionaryPC). Remember to use --recursive when cloning! Fork of project that used to be hosted at code.google.com/p/quickdic-dictionary.
You can add Screenshots for F-Droid, too, if you want. https://f-droid.org/en/docs/All_About_Descriptions_Graphics_and_Screenshots/ https://gitlab.com/snippets/1895688 That was simply information about what is still possible. You would then only have to enter the screenshots in fastlane.