This is the 2144th most frequent Portuguese word.
livres
Free.
Here, "livres" describes the state of the birds, emphasizing their freedom and lack of confinement.
Os pássaros voam altos e livres pelo céu.
The birds fly high and free through the sky.
"Livres" is used to refer to the autonomy of individuals, highlighting their ability to make independent decisions.
Nós somos livres para escolher o nosso próprio caminho.
We are free to choose our own path.
In this sentence, "livres" means "free of charge," referring to activities that do not require payment to participate.