u
Definition and Usage
The HTML<u> element renders text with an underline, a line under the baseline of its content. The HTML <u> tag is used for specifying text with a non-textual annotation. This could include words or spans of text that need to be presented differently such as misspelt words or Chinese names.
The <u> tag usually results in the text being underlined (unless you style it otherwise). For this reason, you should avoid using this element in cases where it may be confused for a hyperlink. For example, one proper use of the <u> element is to identify misspelled terms.