The King-in-Council or the Queen-in-Council, depending on the gender of the reigning monarch, is a constitutional term in a number of states.
Royal Majesty was the commonly used term to refer to the supreme executive authority under the 1809 Instrument of Government, under which the monarch made all decisions of state in the presence of his Cabinet ministers.
The King-in-Council is the technical term of constitutional law for the exercise of executive authority in a Commonwealth realm, denoting the monarch acting by and with the advice and consent of his or her privy council (in the United Kingdom and Canada's federal jurisdiction) or executive council (in most other Commonwealth realms and the Australian states and Canadian provinces).
The government of [jurisdiction] is commonly used as a synonym for any of the aforementioned terms, though the phrase may mean more than one thing in certain areas.
Former Commonwealth realms and dependencies often retain a similar constitutional concept; for example, President-in-Council in India[3][4] or Chief Executive-in-Council in Hong Kong.