10 Downing Street
- The address of the residence in London of the Prime Minister of the United Kingdom.
- (by extension, metonymically, idiomatic) The title or office of the Prime Minister.
- (by extension, metonymically, idiomatic) The government of the United Kingdom.
2006, Great Britain: Parliament: House of Commons: Public Administration Select Committee, Propriety and Honours: Interim Findings; Fourth Report of Session 2005-06, volume 29, ISBN 0215029798, page 23:
- ... explicitly clear, in the way that 10 Downing Street has made it clear in the case of city academies, that it is perfectly legitimate to put people in the House of Lords ...