After the users have added words to personal dictionaries, they are not considered misspelled ones for them. The words added to personal user dictionaries are kept in their browser local storage until saved on a server and also available for them as suggestions. To add a word to WProofreader: Alternatively, users can add words from the Settings dialog. To do so: To add a word to a personal user dictionary in SCAYT plugin for CKEditor 4: To add a word to WSC dialog plugin for CKEditor 4: