As I have sometimes had to check spelling of a word or sentence outside of a text editor I had a look around for a GUI for aspell but surprisingly couldn't find one! So I wrote this simple front end for ASpell just launch it from the accessories menu and paste or type a word in the text box and either press 'Spell Check' to check and correct all words in the text box or select a single word and press 'Check Word' to just correct that one, that's all there is to it.

Main Window Gtk2

Word replace dialog Gtk2

Main Window QT5

Word replace dialog QT5