This is the 110th most frequent Spanish word.
nacional
"National."
Here, 'nacional' modifies music, signifying that the music is characteristic or representative of a nation.
La música nacional refleja la cultura de un país.
National music reflects the culture of a country.
In this example, 'nacional' is used to describe a program that operates on or is organized by a nation-wide level.
El programa de vacunación nacional ha tenido éxito.
The national vaccination program has been successful.
In this sentence, 'nacional' describes the team, indicating that they represent the nation in the competition.