Kile is a top-notch KDE frontend LaTeX editor. Enabling spell checking for it requires a small trick if you’re running Ubuntu, which is Gnome based. Several options, including spell checking, for KDE applications are configured within the KDE control center. To get the job done, proceed as follows:
1. First, you need to install the KDE control . . . → Read More: Enabling Spell Checking In Kile Using Aspell