UNHCE Information Technology & Distance Education Blog

If you need to print a number of Word documents that reside in
the same folder, you can send them all to the printer in record
time. In fact, you don't even need to open the documents. Simply
press and hold the [Ctrl] key (press and hold [command][control]
in v. X) while selecting each file. (If your files are
consecutive, you can press and hold [Shift] while selecting the
first and last file.) Once you've selected all the files you want
to print, right-click one of the files and select Print from the
shortcut menu.

Courtesy of: Element K tips