If you no longer want your domain name, you can transfer it to someone else or ask to have it deleted. Deleting your name means that the name and all the details that are associated with it, like your name and address, etc, are erased from our WHOIS database. Contact your registrar to have your name deleted.
When deleted, a domain name spends 40 days in quarantine. This quarantine period functions as a cooling off period so that you can get your domain name back if you change your mind, or if the domain name was deleted inadvertently. After the quarantine period, the domain name is released for registration. This means that it can be registered by someone else on a first-come first-served basis.