HTML Other Lists :

In addition to ordered lists (<ol>) and unordered lists (<ul>), HTML also supports definition lists (<dl>). Definition lists are used to group terms and their definitions. The structure of a definition list involves the use of the <dt> (definition term) element for the term and the <dd> (definition description) element for its definition.

Here's an example:

<dl>
  <dt>Term 1</dt>
  <dd>Definition 1</dd>
  
  <dt>Term 2</dt>
  <dd>Definition 2</dd>
  
  <!-- You can have more term and definition pairs -->
</dl>

For instance:

<dl>
  <dt>HTML</dt>
  <dd>HyperText Markup Language</dd>
  
  <dt>CSS</dt>
  <dd>Cascading Style Sheets</dd>
</dl>

This will be rendered as:

HTML

HyperText Markup Language

CSS

Cascading Style Sheets

Definition lists are useful when you want to represent relationships between terms and their definitions.

Additionally, you can create nested lists by combining these list types. For example:

<ul>
  <li>Item 1</li>
  <li>Item 2
    <ol>
      <li>Nested Item 1</li>
      <li>Nested Item 2</li>
    </ol>
  </li>
  <li>Item 3</li>
</ul>

This will produce an unordered list with a nested ordered list under the second item.

Remember that you can use CSS to style and customize the appearance of your lists further.