+<helpop key="silence" value="/SILENCE [(+|-)<mask> [CcdiNnPpTtx]]
+
+A server-side ignore of the given n!u@h mask. If the optional flags field is
+specified then it must contain one or more flags which specify what kind of
+messages should be blocked and how they should be blocked.
+
+/SILENCE - Shows a list of silenced masks
+/SILENCE +<mask> [<flags>] - Add a mask
+/SILENCE -<mask> - Remove a mask
+
+Valid SILENCE Flags
+-------------------
+ C Matches a CTCP targeted at a user.
+ c Matches a CTCP targeted at a channel.
+ d Default behaviour; equivalent to CciNnPpTt.
+ i Matches an invite to a channel.
+ N Matches a NOTICE targeted at a user.
+ n Matches a NOTICE targeted at a channel.
+ P Matches a PRIVMSG targeted at a user.
+ p Matches a PRIVMSG targeted at a channel.
+ T Matches a TAGMSG targeted at a user.
+ t Matches a TAGMSG targeted at a channel.
+ x Exempt the mask from silence rules.
+
+Any combination of flags is valid.">
+