You can use Workgroup Manager to prevent profane words from appearing in Dictionary:
- In Workgroup Manager, select a user, group, or computer list record.
- Click Preferences, then the Details tab.
- Click "Add" and add this preference file:
~/Library/Preferences/com.apple.Dictionary.plist
- Double-click "com.apple.Dictionary" in the list to edit it.
- Click the Often domain, then click the Clear button to remove all the entries.
- Expand the Always domain by clicking the disclosure triangle.
- Click "New Key" and enter this information:
name: parentalControl
type: boolean
value: true
- Click Apply Now.
- Click Done to exit the preference editor.
The record selected in step 1 will now be prevented from seeing expletive words in Dictionary.