A feature that corrects common typing errors automatically as you type. AutoCorrect can be customized to correct specific mistakes that you frequently make.

Automatically corrects a word after you press the spacebar.

A feature in MS Word and other programs which automatically corrects your spelling, and even your grammar, as you type. Better switched off if you use obscure technical terms, or prefer your own interpretation of the rules of grammar, or else you are likely to find that it's "corrected" your text to something you didn't intend.