This is the 2192nd most frequent Catalan word.
compleixen
"Compleixen" means "they fulfill" or "they comply with."
In this sentence, "compleixen" is used to denote that the flowers are fulfilling or performing their function in the environment.
Les flors compleixen la seva funció en l'ecosistema.
The flowers fulfill their role in the ecosystem.
Here, "compleixen" refers to the passing of years, metaphorically implying completion or progress over time.
Com els anys compleixen, la saviesa augmenta.
As the years pass, wisdom grows.
In this context, "compleixen" indicates that the students are adhering to or meeting their obligations regarding their schoolwork.