This is the 10958th most frequent Catalan word.
semestral
"Semestral" means "semiannual" or "occurring every six months."
Here, 'semestral' describes a recurring event that happens every six months, in this case, a payment.
El pagament semestral de la matrícula s'ha de fer abans del dia 15.
The semiannual payment of the tuition fee must be made before the 15th.
In this sentence, 'semestral' is used to describe the periodical publication frequency of the magazine.
Aquesta revista semestral sempre inclou articles fascinants.
This semiannual magazine always includes fascinating articles.
Here, 'semestral' refers to the scheduled activity of reviewing, indicating it occurs twice a year.