This is the 857th most frequent Lithuanian word.
lietuviai
"Lietuviai" means "Lithuanians" in English.
The word "lietuviai" is used as the subject of the sentence, meaning 'Lithuanians' in the plural form, indicating the people of Lithuania collectively.
Lietuviai dažnai švenčia Jonines.
Lithuanians often celebrate Midsummer's Eve.
The word "lietuviai" is declined here to the genitive case "lietuvių" to match the possessive relationship with 'friends' in Lithuanian (daug draugų lietuvių).
Turiu daug draugų lietuvių.
I have many Lithuanian friends.
Here, "lietuvių" is an attributive genitive form describing the noun 'culture' (kultūrą), indicating that it pertains to Lithuanians.