In a parliamentary democracy, the chief member of the cabinet and head of the government; usually the leader of the majority party
Yesterday we had a visit from the Prime Minister. (See usage notes.).
the head of the national government, the chief minister in some countries, including Australia
- the chief minister and leader of the Canadian government The prime minister is head of the political party in power and leader of the cabinet The current prime minister is Jean Chrétien of the Liberal Party of Canada
The Prime Minister is a Member of Parliament who is also the leader of the winning Political Party He or she lives at 10 Downing Street Our Prime Minister at the moment is Tony Blair