+ <varlistentry><term>hold</term>
+ <listitem><para><literal>hold</literal> is used to mark a
+ package as hold back, which will prevent the package from being
+ automatically installed, upgraded or removed.
+ The command is only a wrapper around <command>dpkg --set-selections</command>
+ and the state is therefore maintained by &dpkg; and not effected
+ by the <option>--filename</option> option.
+ </para></listitem>
+ </varlistentry>
+
+ <varlistentry><term>unhold</term>
+ <listitem><para><literal>unhold</literal> is used to cancel a
+ previously set hold on a package to allow all actions again.
+ </para></listitem>
+ </varlistentry>
+