This is the 692nd most frequent Lithuanian word.
valstybės
"Valstybės" means "states" or "countries" in English.
In this sentence, 'valstybės' means 'of the state' and is a possessive form to indicate belonging to the state.
Mūsų valstybės sostinė yra Vilnius.
The capital of our state is Vilnius.
Here, 'valstybės' relates to the celebration titled 'State's Day,' indicating its association with the state as an entity.
Valstybės diena yra rugpjūčio šeštoji.
The Day of the State is on August 6th.
'Valstybės' here refers to 'of each state,' illustrating its use to denote possession or relation to a state.