Delete titles if they have not been used on any contact or staff records. If the title has already been used then change the item to be inactive to stop it from being used in the future.
Go to: Settings > Contact lists > Titles and use one of the following methods: Single row - Click the row action button and select 'delete'. Multi-row - Select the check box(es) on the row left for each item you want to delete. Then click the multiple rows action button and choose 'delete'.
The list refreshes and the item(s) have been deleted.