The executive arm of the United Kingdom government[?] is controlled by the Cabinet, a group of senior government ministers chaired by the Prime Minister. The Cabinet has a group of sub-committees called cabinet committees, which perform most of the day-to-day work of cabinet government.
... it merely designated anyone who assumed power for any period of time without a legitimate basis of authority.
The first to have the title of "Tyrant" was Pisistratus ...