To help you understand how the AFTRA Health Plan works, it's important for you to know the meaning of the terms defined in the Health Plan Glossary.  Please note, however, that this glossary is intended to provide only a basic understanding of these important terms. You should review the entire 2011 Health Plan Summary Plan Description very carefully for a more detailed description of these terms and how they are applied (including various special rules and exceptions that may be relevant to you).