speller

Noun

1. A person who spells.
   • I'm a slow reader but a good speller.
   • Without insisting on a difference between the inventors and the spellers of words, Socrates makes short work of this case. - 2005, Michael W. Riley, Plato's Cratylus: Argument, Form, and Structure, page 124:
2. A participant in a spelling bee.
3. A book used to learn how to spell properly.
4. A spell checker.
   • But Word's spelling program still isn't fully integrated into the word processor. For one thing, any changes and corrections you make from the speller's menus don't appear on-screen until you get back to your original...