1The head of the cabinet who oversees the country's administration; formally called 内閣総理大臣, often shortened to 総理.
新しい総理大臣が就任し、記者会見を行った。
The new prime minister took office and held a press conference.
総理大臣は各国の首脳と会談するために外国を訪れた。
The prime minister traveled abroad to hold talks with other heads of state.
国会で総理大臣に対する質問が相次いだ。
One question after another was directed at the prime minister in the Diet.