This is the 7252nd most frequent Portuguese word.
líbano
Lebanon.
Here, 'Líbano' is used as a proper noun referring to the name of the country Lebanon.
O Líbano é um país localizado no Oriente Médio.
Lebanon is a country located in the Middle East.
In this sentence, 'Líbano' again functions as a proper noun referring specifically to the country Lebanon.
Eu gostaria de visitar o Líbano um dia.
I would like to visit Lebanon one day.
Here, 'Líbano' is used to denote origin, indicating that the dish belongs to the traditional cuisine of Lebanon.