This is the 261st most frequent Lithuanian word.
trys
Three.
Here, 'trys' is used as a numerical adjective modifying the noun 'books', indicating a quantity of three.
Aš turiu tris knygas.
I have three books.
In this case, 'trys' changes to 'trijų' to agree grammatically with the plural genitive form of 'tables'.
Mums reikia trijų stalų.
We need three tables.
Here, 'trys' modifies 'kartus', a noun, conveying a count of three attempts.