in a list.
</font><a name="@default579"></a><br />
<br />
</dd><dt><font color="black"><b>nested list:</b></font></dt><dd><font color="black"> A list that is an element of another list.
</font><a name="@default580"></a><br />
<br />
</dd><dt><font color="black"><b>object:</b></font></dt><dd><font color="black"> Something a variable can refer to. An object
has a type and a value.
</font><a name="@default581"></a><br />
<br />
</dd><dt><font color="black"><b>reference:</b></font></dt><dd><font color="black"> 