Presumably you mean words that have the squiggly underline that Word puts there to indicate a possible spelling mistake. There is no way to select only such words. A Word macro, however, could build such a list. Even so, without knowing the context, it's impossible to say what the apparently-misspelt word should be. Still, if that's what you're interested in, there's some code to get you started at:
https://www.msofficeforums.com/word-...tml#post112057