Longman Dictionary of Contemporary English
Wiktionary
n. (context British English) The local office in which births, marriages and deaths are registered, and in which civil marriages are conducted
Wikipedia
A register office (registry office, a common colloquialism) is a British government office where births, deaths and marriages are officially recorded and civil marriages take place.
Usage examples of "register office".
Julian and Gayle on the steps of the Register Office, husband and wife.
As if to prove the point, within days of the child's birth he and Miss Salmon were married quietly in a register office.
The following summer Daphne and Percy were themselves married, not at Chelsea Register Office but at St.
No grating for the wedding ring to fall down, I thought to myself happily as we entered the register office.
Johnson took a cursory view, and then to what is called the Laigh (or Under) Parliament House, where the records of Scotland, which has an universal security by register, are deposited, till the great Register Office be finished.
Anne and John had been married at a register office, she 19, he 20.