If you're creating a form for someone to fill out, you may want to include checkboxes for someone to check indicating that they agree with or have read certain parts of the document. You might also ...

Click anywhere on the Word document. On the menu bar, click the Insert tab. In the Text group, click the Quick Parts button. Then select Field from the drop-down menu. A Field dialog box will appear.

Click the object you want to add the caption to, for instance, equation, table, figure, or any other object in your document. If the list does not provide the label you want, click New Label and type ...