noun
summit conference; summit meeting
Refers to a high-level meeting between heads of state or government, often used in political and diplomatic contexts.
両国の首脳は来月、頂上会談を行う予定だ。
The leaders of both countries are scheduled to hold a summit conference next month.
首脳会談 is a more common synonym for summit meeting, while 頂上会談 is slightly more formal or literary.
Compound of 頂上 (summit, peak) and 会談 (talks, conference), literally 'summit talks'.