This is the 7639th most frequent Polish word.
libanu
"Libanu" in Polish means "of Lebanon."
In this sentence, 'Libanu' refers to the country Lebanon in the genitive case, indicating possession or association.
Odwiedziłem piękne góry Libanu.
I visited the beautiful mountains of Lebanon.
Here, 'Libanu' again signifies Lebanon in the genitive case, used to describe possession ('of Lebanon').
Historyczne kroniki wspominają o bogactwie cedrów Libanu.
Historical chronicles mention the wealth of Lebanon's cedars.
In this context, 'libanu' is used similarly to show possession and origin, referring to Lebanon in the genitive form.