Yes, subject to meeting all the conditions for registering a domain name. To do so, you must complete the registration procedure through your Registrar. This will have the effect of publishing the domain name in the Whois directory and thus protecting it during the entire registration period by indicating that you are its sole holder. A second procedure, activation, also conducted via your Registrar, remains necessary in order to use this domain name on the internet (for a website or as the basis of an email address).