Using a custom dictionary

When Word checks spelling, it uses the two main dictionaries and also the active custom dictionary (or dictionaries). Custom dictionaries contain special words that do not appear in the main dictionaries. For example, you could create or load a dictionary of medical terms. The default custom dictionary is called RoamingCustom.dic.

Click the File tab, Options, then Proofing.

Click Custom Dictionaries.

To create a new custom dictionary, click the New button, enter the name for the new dictionary in the File name box then click Save.

The new dictionary appears in the list of existing dictionaries and is active automatically (indicated by a tick next to its name).


By default, when you click Add (Spelling pane), the word is added to the RoamingCustom.dic dictionary. If you want to add words to another custom dictionary, select it in the dictionary list then click Change Default.

The text (Default) appears to the right of the chosen dictionary.

To change the language of a custom dictionary, click the dictionary name from the Dictionary List, then select the language in the Dictionary language list. Word will only use this dictionary to check the spelling of text in that language.

By default, when you create a new dictionary, the All Languages option is selected. It is thus used regardless of the text language.

To change a custom dictionary, click Add, select the drive where it is stored, then the folder containing the file, then double-click the file.

To close an open dictionary, uncheck the box next ...