A cross-reference refers to an item that appears in another location in a document — for example, "See Figure 1." You can create cross-references to headings, footnotes, bookmarks, captions, and numbered paragraphs.

Optional text that you type
Item that you select from the Cross-reference dialog box
After you create a cross-reference, you can change what the cross-reference refers to. For example, you can change the reference item from a page number to a paragraph number.