This is the 4477th most frequent Spanish word.
aeronáutico
Related to aviation or the science of aircraft design and operation.
Here, 'aeronáutico' is used as an adjective describing the type of engineer specialized in aviation.
El ingeniero aeronáutico diseñó un nuevo tipo de avión.
The aeronautical engineer designed a new type of aircraft.
In this sentence, 'aeronáutica' is used as an adjective describing 'industria', indicating the industry related to aviation.
La industria aeronáutica está avanzando rápidamente en términos de tecnología.
The aeronautical industry is rapidly advancing in terms of technology.
Here, 'aeronáutica' functions as a noun referring to the science and practice of designing and building aircraft.