(LEADER) [noun] [C] - (esp. used in news reports) the leader of the government of a country, or of a large part of a countryThe talks, chaired by the Canadian Prime Minister, were attended by the premiers of all 10 provinces.Australia's state premiers attended the meeting.
PREMIER
Meaning of PREMIER in English
Cambridge English vocab. Кембриджский английский словарь. 2012