How can I underline a word in red?

To underline a Word in red using HTML, you can use the <span> tag with inline CSS. For example: <span style="text-decoration: underline; color: red;">your Word</span>. This will display the Word with a red underline. If you're using a text editor like Microsoft Word, you can select the Word, choose the underline option, and then change the font color to red.