The Nodereference field stores the nid of a related node. The title of the related node is usually displayed as the value of this field.

The Nodereference field can use an autocomplete widget, or, when used with Optionwidgets, the available values can be presented to the end user in a drop-down select list, checkboxes, or radios.

A Nodereference field can be used in Views to create a Relationship to another node, to allow you to use any field, argument, or filter from the related node in your view.