the Admiralty
noun/ði ˈædmərəlti/
/ði ˈædmərəlti/
[singular + singular or plural verb]- (in the UK in the past) the government department controlling the navy
（英国旧时）海军部 Word Originlate Middle English: from Old French admiralte, from admirail ‘emir, leader’ via medieval Latin from Arabic 'amīr ‘commander’ (from 'amara ‘to command’).