seaplane
The Spanish word 'hidroavión' translates to 'seaplane' in English. It is a type of powered aircraft that is designed to take off and land on water. This differs from a standard airplane which requires a traditional runway to take off and land. Seaplanes can be mainly divided into two categories: flying boats (where the fuselage also serves as a boat hull) and floatplanes (equipped with pontoons for buoyancy). They are especially useful in areas with a lot of water but few runways, thus making them popular in places like seacoast cities, lake districts or in the archipelagos.
The seaplane landed gently on the lake.
In this sentence, 'hidroavión' is used to refer to a type of aircraft, a seaplane, that is capable of landing on water. The verb 'aterrizó' which means 'landed', is used here to describe the action performed by the seaplane.
A seaplane pilot must be trained to land on water.
Here, the noun 'hidroavión' is used in combination with another noun, 'piloto', to specify a type of pilot - a pilot of a seaplane. This indicates that there are special skills needed (in this case, to be able to land on water) specifically related to this type of aircraft.
The seaplane can be an alternative to boats for traveling on water.
This sentence suggests a use for the 'hidroavión' or 'seaplane' as an alternative means of water transportation, contrasting it with boats. It further implies that seaplanes can offer certain advantages over traditional watercraft in terms of travel.