I’ve been using Microsoft Word for close on 20 years and still technical things crop up either I didn’t know about, or haven’t had to know about. I recently received a Word document to work on in which a significant number of words at the end of lines were hyphenated. Nothing strange about that, except that, when the cursor was advanced over the hyphenated word, it completely jumped over the hyphen to the next character as if the hyphen wasn’t actually present in the document.
I did a bit of searching and discovered that automatic hyphenation had been turned on in that document. In Word 2007 and later, you can check the status of hyphenation in your current document and turn off automatic hyphenation by going to Page Layout, clicking Hyphenation and selecting None.
In Word versions earlier than 2007 go to Tools, Language, Hyphenation and uncheck Automatically hyphenate document.
So you’ve never noticed automatic hyphenation? Well, that may be because it’s turned off in all your documents. So this doesn’t apply to me? It might. if someone sends you a document in which automatic hyphenation has been used, it will be turned on for that document in your system, i.e. the hyphenation setting travels with the document. So a hyphenated document will open on your system. But it’s easily turned off as I’ve described.