You can create a term definition in the same way as other types of guidance in a content package.
Glossary entries are a type of guidance called term definition.
If that content package is used in a configuration, all glossary elements contained in that package will be combined with terms contained in other packages of that configuration. The glossary in the published site will include these terms merged together from all packages and sorted alphabetically.
You can preview the glossary in the Configuration view by expanding .
When a content package is removed from a configuration, all term definition elements in that package are removed from the configuration, and therefore they are no longer in the Configuration view.
When the Publish glossary option in the Publish Method Configuration wizard is selected, all term definitions in the configuration will be provided in the glossary used in the published site. If this option is cleared before publishing, the published site will not provide a glossary feature.