This is the 1211th most frequent Portuguese word.
indígena
"Indígena" means "indigenous," referring to native peoples or things originating naturally in a particular place.
Here, 'indígenas' is used as an adjective to signify 'people who are native to a region', describing the 'povos'.
Os povos indígenas lutam pela preservação de suas terras.
Indigenous people fight for the preservation of their lands.
In this sentence, 'indígena' is serving as an adjective to describe the noun 'cultura', emphasizing its origin.
A cultura indígena é rica e diversificada.
Indigenous culture is rich and diverse.
Here 'indígenas' modifies the noun 'tradições' as an adjective, pointing to specific traditional practices associated with indigenous groups.