It is called a POINT!
The process is called "condensation", and the point is called the "dew point".
The low point of a wave is called the trough (the high-point is called the peak).
It is called the Point of Origin.
The extreme point is called a vertex.
its just called a first point.
The last point of a volleyball game is called the game point. Simple, huh? In the last game of a match, the game point is called the match point.
The low point of a mountain range is called a pass. In contrast, the high point is called a peak.
The starting point in a race is called the starting line. The end point of a race is called the finish line.