a ceremony that takes place at 10 p.m. every night at the Tower of London , when a beefeater closes the gates, exchanges secret passwords with a guard, and gives him the keys.
CEREMONY OF THE KEYS
Meaning of CEREMONY OF THE KEYS in English
Oxford guide to British and American culture English vocabulary. Руководство по британской и американской культуре, Оксфордский английский словарь. 2005