I don't think you can select text as Suzanne suggests, can you? If so, before force-quitting Word, do Command A (Select All), Command C (Copy), then switch to TextEdit (you'll find it in the Dock and in the Applications folder) and paste. Then save the TextEdit file, just in case, and force-quit Word or restart your computer.
Otherwise, sorry to give you bad news:
If the document was never saved, there is nothing you can do to recover the file (except take a screen shot of the visible portion of your document with Command Shift 4)
If the document was saved at least once, that saved file is all you can recover from the Finder.
However, there may be other temporary files in a temporary folder. Go to the Finder, select Go, Go to Folder and type /private/var/folders in the field. Then open the folder with a very recent modified date (it should have a 2-character name). This folder should contain a 27-character weirdly-named folder. Inside it, you will find a folder called "-Tmp-" contaning "TemporaryItems."
Thus, your path will be Macintosh HD/private/var/folders/Two_char_name/Weird_name/-Tmp-/TemporaryItems.
Look for a file named Word Work File D_SOME_NUMBER.tmp (or .doc). Then, Option Drag it to your Desktop before opening it. (You may see other temporary files starting with a ~, but those won't be useful.)
If the document was saved at least once and AutoRecover was enabled in Word > Preferences, you can force-quit Word, as it will detect the AutoRecover files next time around and offer you to recover the file.