Horizontal plane: A horizontal plane is a flat surface that is parallel to the ground. It is perpendicular to the vertical plane. An example of a horizontal plane is the surface of a table or the floor of a room.
Vertical plane: A vertical plane is a flat surface that is perpendicular to the ground. It is parallel to the horizontal plane. An example of a vertical plane is the wall of a building or the side of a cliff.
Wanderlust World