prime minister prime minister /praɪm ˈmɪnɪstər/

noun

1. () The person who is head of government (in several countries)  ( chancellor , premier , prime minister )
   the person who is head of government (in several countries)
     The prime minister addressed the pressing issues facing the nation during a press conference.
   The prime minister addressed the pressing issues facing the nation during a press conference.
   
   

 Prime Minister

1. () The person who holds the position of head of the government in the United Kingdom  ( PM , premier , Prime Minister )
   the person who holds the position of head of the government in the United Kingdom
     The prime minister met with world leaders to discuss international cooperation.
   The prime minister met with world leaders to discuss international cooperation.