This is the 133rd most frequent Lithuanian word.
pasaulio
"Of the world" or "world's."
'Pasaulio' is used here to denote possession, meaning 'of the world' or 'world's' in relation to the map.
Pasaulio žemėlapis rodo visus žemynus.
The world map shows all continents.
'Pasaulio' provides context for the superlative, indicating the domain ('of the world') in which she excels.
Ji yra viena geriausių pasaulio sportininkių.
She is one of the world's best athletes.
'Pasaulio' establishes the scope of concern, namely the environment of the world.