NickServ allows you to "register" a nickname and prevent others from using it. The following commands allow for registration and maintenance of nicknames.

Nicknames that are not used anymore are subject to the automatic expiration, i.e. they will be deleted after 28 days if not used.

NOTICE: This service is intended to provide a way for IRC users to ensure their identity is not compromised. It is NOT intended to facilitate "stealing" of nicknames or other malicious actions. Abuse of NickServ will result in, at minimum, loss of the abused nickname(s).