hyödyllisiä
Hyödyllisiä is a Finnish adjective meaning useful or beneficial. It is the plural partitive form of hyödyllinen, used to describe multiple items or ideas that provide practical value. In everyday language, hyödyllisiä appears most often in contexts where the noun it modifies is plural and in the partitive case, such as when the amount is not definite or when it is accompanied by partitive objects.
Grammatically, hyödyllisiä is the plural partitive form; when used with a singular noun you would use hyödyllinen.
Etymology: hyödyllinen derives from hyöty, meaning benefit or utility, with the suffix -llinen forming adjectives meaning
See also: hyöty (benefit), hyödyllisyys (usefulness), and hyödytön (useless).