The document defines the basic terms in geometry: 1) A point has 0 dimensions and represents a location in space. 2) A line extends in one direction and has 1 dimension (length). 3) A plane extends indefinitely in two directions and has 2 dimensions (length and width). It also defines related terms like space, collinear points, coplanar points, and intersections. The document concludes with examples to classify as true or false.