This is the 11290th most frequent Spanish word.
erosión
Erosion: The process by which soil, rock, or land is worn away by natural forces such as wind, water, or ice.
In this sentence, 'erosión' refers to the natural physical process of soil degradation.
La erosión del suelo afecta la fertilidad agrícola.
Soil erosion affects agricultural fertility.
Here, 'erosión' is used metaphorically to describe a gradual decline or deterioration of ethical values.
La erosión de los valores éticos en la sociedad es preocupante.
The erosion of ethical values in society is concerning.
In this case, 'erosión' signifies the physical wearing away of a building's surface.