As well as AutoCorrect entries, you can create AutoCorrect exceptions - specific terms when you don't want AutoCorrect to replace text when it normally would.
The AutoCorrect dialog box includes a variety of options that control automatic substitutions which are divided in two tabs: The AutoCorrect tab and the AutoFormat as You Type tab.
You can use the AutoCorrect feature to correct typos and misspelled words, as well as to insert symbols and other pieces of text. AutoCorrect is set up by default with a list of typical misspellings and symbols, but you can modify the list that AutoCorrect uses.
With Research pane you can: find synonyms (a word that means essentially the same thing as the word it replaces) and antonyms (a word that means the opposite of the selected word), while Word's thesaurus primarily finds synonyms; search words in public dictionaries (e.g., Encarta World Dictionary); translate words and texts.