This is the 340th most frequent Lithuanian word.
tų
The Lithuanian word "tų" is a genitive plural form of "tu," meaning "of you" or "yours" in English.
In this sentence, 'tų' is used as the genitive plural form of 'tas' (those), and it describes an object (books) in a genitive case relationship.
Tų knygų čia nebėra.
Those books are no longer here.
Here, 'tų' again is the genitive plural form of 'tas' (those) used to refer to a specific set of people with emphasis.
Ar tų žmonių čia buvo daugiau?
Were there more of those people here?
In this example, 'tų' is the genitive plural form of 'tas' (those), referring to a specific bygone era or times.