[1] 
>
The process
of placing an entry into the DNS is referred to as "registration".
This is similar to common contemporary usage of that term in other
contexts.

;; [2] [CITE@en[RFC 5890 - Internationalized Domain Names for Applications (IDNA): Definitions and Document Framework]] 
<http://tools.ietf.org/html/rfc5890#section-2.2>