Say I go into a browser (chrome) or a chat window (empathy) and type "calandar", an obvious misspelling of the word calendar. The word is underlined with red squiggles and I want to auto correct this word. I could right click on the misspelled word and pick the correction, but using the mouse is inefficient.
How could I invoke the spell correction dialog with a keyboard shortcut and have it work across all apps?