This is the 388th most frequent Lithuanian word.
amerikos
"Amerikos" in English means "America's" or refers to "America" (possessive or plural/singular context).
Here, 'Amerikos' is a possessive form referring to something belonging to America, i.e., American cities.
Jis svajoja aplankyti Amerikos miestus.
He dreams of visiting American cities.
In this sentence, 'Amerikos' is used as a genitive form to describe the noun 'istorija' (history) as belonging to America.
Amerikos istorija yra labai įdomi.
The history of America is very interesting.
Here, 'Amerikos' shows possession again, indicating that the culture belongs to America.