This is the 112th most frequent Lithuanian word.
naujų
"Of new" (genitive plural form of "naujas," meaning "new").
In this sentence, 'naujų' is the genitive plural form of the adjective 'naujas', meaning 'new'. It is used to describe the noun 'knygų' (books), which is also in the genitive plural case.
Man reikia naujų knygų.
I need new books.
Here, 'naujų' is used in a similar manner as in the first sentence, modifying 'sprendimų' (solutions), and both are in the genitive plural case.
Mes ieškome naujų sprendimų.
We are looking for new solutions.
In this example, 'naujų' functions as a descriptive adjective for 'idėjų' (ideas), again in genitive plural, indicating the type or quality of the ideas mentioned.