Point- A definite location with no size represented by a dot and labeled with a capital letter. Chosen because it is one of the foundations of geometry.
Line- A straight path that extends forever in both directions. Must have at least two points. Symbol is a line with arrows at both ends. Chosen because it is one of the foundations of geometry.
Plane- A flat surface that extends for forever, created by at least 3 non-collinear points. No notation or symbol, represented by points on the plane or the plane name. Chose because it is one of the foundations of geometry.
Ray- A straight line that starts from an endpoint and extends forever. Named by the endpoint first and a point on the ray last. Essential part to angles.
Line segment OR segment- A section of a line consisting of two points and all the points between them. Symbol is a line. Used extensively through geometry.
Angle- A figure formed by two rays extending from the same endpoint. Labeled with three letters, the vertex being in the center. Symbol is a angle sign. Used extensively through geometry.
Vertex- The endpoint of an angle. No notation or symbol, same notation as a point. Important part of angles.