This is the 11337th most frequent Catalan word.
triats
"Triats" means "chosen" or "selected" in English.
In this case, 'triats' continues to function as a past participle, describing the dishes selected by the chef.
Els plats triats pel xef eren deliciosos.
The dishes chosen by the chef were delicious.
'Triats' is used in a passive voice construction, forming part of the participle phrase.
Els candidats han estat triats segons els seus mèrits.
The candidates have been chosen according to their merits.
Here, 'triats' is used as a past participle, agreeing in gender and number with 'estudiants' and indicating selection.