Summit vs. Zenith — What's the Difference?

A summit is a point on a surface that is higher in elevation than all points immediately adjacent to it. The topographic terms acme, apex, peak (mountain peak), and zenith are synonymous.

The zenith is an imaginary point directly "above" a particular location, on the imaginary celestial sphere. "Above" means in the vertical direction (plumb line) opposite to the gravity direction at that location (nadir).

The highest point of a hill or mountain

The time at which something is most powerful or successful

A meeting between heads of government

The point in the sky or celestial sphere directly above an observer.

Reach the summit of (a mountain or hill)

The point on the celestial sphere that is directly above the observer.

The highest point or part; the top.

The upper region of the sky.

The highest level or degree that can be attained.

The highest point above the observer's horizon attained by a celestial body.

The highest level, as of government officials.

The point of culmination; the peak

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

(astronomy) The point in the sky vertically above a given position or observer; the point in the celestial sphere opposite the nadir.

To climb to the summit of (a mountain).

(astronomy) The highest point in the sky reached by a celestial body.

To climb to the summit.

(by extension) Highest point or state; peak.

(countable) A peak; the topmost point or surface, as of a mountain.

That point in the visible celestial hemisphere which is vertical to the spectator; the point of the heavens directly overhead; - opposed to nadir.

(countable) A gathering or assembly of leaders.

Hence, figuratively, the point of culmination; the greatest height; the height of success or prosperity.

To reach the summit of a mountain.

The point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projected

Something

The top; the highest point.

The highest degree; the utmost elevation; the acme; as, the summit of human fame.

The most elevated part of a bivalve shell, or the part in which the hinge is situated.

The highest level or degree attainable;

The top point of a mountain or hill;

A meeting of heads of governments

Reach the summit of a mountain;