In the Navigation Pane, click Lexicon, and then click Lexicon Edit.
In the Entries pane, click the entry that has the pronunciation you will delete.
In the Entry pane, click the unwanted Pronunciation field.
A menu button () appears.
Do one of the following:
Click the menu button, and then select Delete this Pronunciation.
Right-click the Pronunciation field label, and then select Delete this Pronunciation.
The Delete Pronunciation warning box appears.
Click Delete.
The following fields are deleted: Pronunciation field and its associated fields, Media File field (and any links to media files, but the actual files are not deleted), and the Label field.