This is the 510th most frequent Finnish word.
hyviä
"Hyviä" means "good" in plural form (partitive case) in English.
The word 'hyviä' is the plural partitive form of the adjective 'hyvä', used here because the noun 'kirjoja' (books) is treated as indefinite and partitive.
Pöydällä on hyviä kirjoja.
There are good books on the table.
The word 'hyviä' is in its plural partitive form, matching the noun 'aterioita' (meals) in both number (plural) and case (partitive), as the verb 'nauttii' (enjoys) requires the partitive case.
Hän nauttii hyviä aterioita joka päivä.
He/she enjoys good meals every day.
The word 'hyviä' modifies the plural noun 'hedelmiä' (fruits) and appears in the partitive case, which is used for partial objects or indefinite quantities.