This is the 4542nd most frequent Catalan word.
opina
"Opina" means "he/she/it opines" or "he/she/it gives an opinion."
Here, 'opina' is used as the third person singular of the verb 'opinar', meaning 'to think or to give an opinion'.
Ell opina que és una decisió correcta.
He thinks it is a correct decision.
In this sentence, 'opines' is the second person singular of the verb 'opinar', used to directly inquire someone's opinion.
Què opines sobre aquesta pel·lícula?
What do you think about this movie?
'Opina' again represents the third person singular of 'opinar', used to express the teacher's viewpoint.