DNS park ‧ ing /ˌdː en es ˈpɑːkɪŋ $ -pːr-/ BrE AmE noun [uncountable]
the practice of putting a particular ↑ domain name (=name used as part of an Internet address) on the official list of domain names, but then not using it in an Internet address until some time in the future. This is done in order to stop the domain name being used by anyone else.