This is the 7700th most frequent Portuguese word.
piatã
"Piatã" is a Tupi word meaning "hard, firm, or resistant ground."
In this sentence, 'piatã' is used as a proper noun, specifically the name of a geographical location, showcasing how the term may denote a place.
Piatã é um município localizado na Bahia.
Piatã is a municipality located in Bahia.
Here, 'piatã' is employed as a common noun, referring to a specific characteristic of lands or terrains, indicating firmness and flatness by its traditional usage.
Antigamente, os locais usavam o termo 'piatã' para se referir a terrenos firmes e planos.
In the past, locals used the term 'piatã' to refer to firm and flat terrains.
In this context, 'piatã' is again a proper noun, denoting the name of a village, emphasizing its cultural significance.