Zenith

1.

(The point in the sky directly overhead, the highest point, peak) កំពូល
Example: Zenith telescope, the zenith of success.

2.

(បច្ចេកទេស) កំពូល, ចំណុចខ្ពស់បំផុត

1.

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

2.

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