Definition of launchpad. : a nonflammable platform from which a rocket, launch vehicle, or guided missile can be launched.
Terrain is defined as the specific physical features of an area of land. An example of terrain is a rocky and jagged coastline. ground or a tract of ground, esp. with regard to its natural or topographical features or fitness for some use.
An airplane about to land. The definition of land is the part of the surface of the Earth that is solid ground and not water. An example of land is the area where you are standing on the ground right now. An example of land is the plot that your house is located on.