The Unofficial Apple Weblog (TUAW) posts a way to “Expurgate your dictionary.”
What is the use of censoring an electronic dictionary? If someone is searching for a profane term then they obviously know the word; wouldn’t you prefer that they be able to find out exactly what it means than give them that tantalizing doubt that makes swearing so fun?
It’s not like a print dictionary; people aren’t going to go browsing through it. Sometimes I have to wonder.