This is the 5317th most frequent Polish word.
serię
"Serię" in English means "a series."
In this sentence, 'serię' is used to refer to a 'series' as a collection of episodes forming part of a TV show.
Czy oglądałeś wczoraj kolejną serię tego serialu?
Did you watch another series of this TV show yesterday?
Here, 'serię' denotes a 'sequence' or 'series' of events happening as a result of the action.
Pocisk wystrzelony przez armię stworzył serię eksplozji.
A bullet fired by the army created a sequence of explosions.
In this context, 'serię' is used to mean a 'collection' of books that belong to a certain thematic or authorial series.