Syntax: RELEASE nickname [password]
Instructs NickServ to remove any hold on your nickname caused by automatic kill protection or use of the RECOVER command.  This holds lasts for %s; this command gets rid of them sooner.
In order to use the RELEASE command for a nick, your current address as shown in /WHOIS must be on that nick's access list, you must be identified and in the group of that nick, or you must supply the correct password for the nickname.