a software feature that automatically replaces a word
in a word-processed document, text message, spreadsheet, or search box, or suggests an alternative word, if the word does not appear in a built-in dictionary.
verb (used with object), verb (used without object)
to correct by use of this built-in dictionary: I typed ‘foluw’, and it autocorrected to ‘follow’.
Also, autocorrect, Autocorrect.