# `<keydef>`

The `<keydef>` element is a convenience element that is used to define keys without any of the other effects that occur when using a `<topicref>` element: no content is included in output, no title is included in the table of contents, and no linking or other relationships are defined. The `<keydef>` element is not the only way to define keys; its purpose is to simplify the process by defaulting several attributes to achieve the described behaviors.

Category: Map group elements