describe a point
The term used to describe the pivot point of a lever system is the "fulcrum." It is the point on which the lever rotates or pivots when force is applied.
it is a location in space.
A point.
its a sign
"Apogee" is the term used to describe the point in the moon's orbit when it is farthest from Earth.
The word to describe the height above sea level of a geographic point is "elevation."
In science, the three things necessary to describe the position of an object are distance from a reference point, direction from the reference point, and a reference point itself.
Only if you are using it to describe something: a point-of-sale terminal.
The term "melting point" is used to describe the temperature at which a substance changes from a solid to a liquid. The term "freezing point" is used to describe the temperature at which a substance changes from a liquid to a solid.
coordinates
The point chosen to describe the position of an object is typically the reference point or origin. This serves as the starting point from which distances or positions are measured in a particular direction. It provides a frame of reference to determine the location of the object relative to that point.