This is the 14216th most frequent Spanish word.
trilogía
A set of three related works, such as books, movies, or plays, that form a series.
In this sentence, 'trilogía' describes a series of three interconnected novels.
Estoy leyendo una trilogía de novelas que trata sobre aventuras en el espacio.
I am reading a trilogy of novels about space adventures.
'Trilogía' here represents a planned series of three works.
El autor anunció que lanzará la última parte de su trilogía el próximo año.
The author announced that he will release the last part of his trilogy next year.
Here, 'trilogía' is used to refer to a set of three related films.