If you have anything whatsoever to do with yourself or anyone else getting married in the standard, official, council-run place, you will have been driven mad by the register office / registry office thing. Right? “It’s register office!”, you may or may not have bellowed, several times.
Well, when putting this post together, I, naturally, consulted the dictionary. And the dictionary backed me up in terms of register office: A register office, in the UK, is the place where births, marriages and deaths are recorded and civil marriage ceremonies are conducted. Phew.
However, it does allow that registry office is the “form which dominates” in informal use. Nooo! A registry is also the place where registers are kept, and it’s the noun formed from registration. So if you have a gift register, it will be kept in the gift registry.
But I’m sticking to the formal, official usage. An example, of course: “We’re getting married at the register office in April 2014. We won’t be placing a wedding list in any gift registry, as we have all that we need for the house, having been together for 12 years”.