origin
For Cartesian coordinates in n-dimensional space there are n axes which are [usually] orthogonal and which meet at a single point called the origin. The coordinates of any point in the n-space are defined by ordered n-tuples whose terms refer to the distances of the point, from the origin, along each of the axes.
It is the origin
The apex Points of a triangle are called as vertices or else the points where two line segments meet is called as Vertices.
You have points A, B, and C. Using a compass and straight edge, find a perpendicular bisector of AB (that is, a line that is perpendicular to AB and intersects AB at the midpoint of AB. Next, find a perpendicular bisector of BC. The two lines you found will meet at the center of the circle.
The point where light rays meet is called the focal point.
There is no specific name for lines that meet at one point, but lines that meet at a point, the point is called the intersection point.
When 2 or more straight lines meet...the point where they meet is called the point of intersection
intersceting point
The point where supply and demand meet is called market equilibrium.
If two sides meet at a POINT then it is a vertex or corner.
The focal point?
The point where two surfaces meet is called an "intersection" or a "junction."
A point on the horizon where parallel lines appear to meet is called the vanishing point.
Convergent
Vertex
At a point called the centroid.