Word prints whatever is in the document, so your document needs to only include what you want to print, and nothing else. Aside from formatting text as “Hidden” there is no way of making Word not print what is in the document.

Text boxes don’t need to have borders, but that makes a white text box on a white background rather hard to find.

If you use Content Controls you can set the title property if you really need to know what to enter where, and the titles don’t print.