summit

The highest point or part; the top.

The highest level or degree that can be attained.

The highest level, as of government officials.

A conference or meeting of high-level leaders, usually called to shape a program of action.

To climb to the summit of (a mountain).

To climb to the summit.

In bivalves, the highest part of the shell; the region in which the hinge is situated.

The highest point; the top; the apex.

The highest point or degree; the utmost elevation; the maximum; the climax.