This is the 11836th most frequent Russian word.
замороженных
"Frozen."
In this sentence, 'замороженных' is an adjective in plural form, modifying the word 'ягод'. It indicates that the berries are in a frozen state.
Я купил упаковку замороженных ягод.
I bought a package of frozen berries.
Here, 'замороженных' is again an adjective in plural form, describing 'продуктов', which means products, specifying that these products are stored in a frozen condition.
Он работает в области хранения замороженных продуктов.
He works in the field of storing frozen products.
In this example, 'замороженных' is used as an adjective in plural form describing 'продуктов', indicating that the products referred to are frozen.