Your iPhone's spell-checking feature automatically adds a red underline to any word that doesn't exist in its dictionary. The underline is purely cosmetic, and the feature is intended to be helpful.

ou might be wondering how to double underline in Google Docs. This feature which is easy to do on other word processors seems to be missing in your Google Docs document. There is a way to double ...

How to control a hyperlink’s appearance in Microsoft Word Your email has been sent Hyperlinks are a part of our everyday lives—we readily recognize the underlined blue font as a link to related ...