There are several meanings to define the term Submersion, the first and most common of all consists of the action of introducing a body into a liquid, going below the water level and staying there. Divers are people who, with the right equipment, dive under sea water to explore its depths. Submarines are, they are vehicles, mostly for military use that transport that travel through the seas below, as opposed to ships that sail above sea level, they consist of a pressurized cylindrical structure to maintain the life and proper functioning of the machines Within these.

Submersion is an action that some living beings can maintain more than others, in fact aquatic beings develop their lives submerged in water, reptiles can spend a good time submerged but must go outside to breathe, human beings can stay for short periods of time underwater, however equipment such as oxygen tanks or vehicles such as submarines have been designed to remain underwater for longer periods of time.

In another context, Submersion refers to a phenomenon in which a land is covered by layers of sediments, which could be dust, saltpeter and any other compound that can be dragged by wind or water currents. These layers of sediment are considerably thick, which causes the disappearance of these folds. It is also common to observe this phenomenon among the constant ice sheets that form at the poles of the planet.

Another typical term is known as Coast of Submersion, it is an effect that occurs on the coasts (beaches) useful to determine the origin of said bay. This is related to another term, the emersion coast. The Coast of submersion, consists of the effect generated by the land in relation to the water for the generation of the coastline, that is, when the change in level is on the land and not in the water. This change can be produced by man. The emersion coast is when the margin of the coast originates from a change in the level of the water with respect to the land.