This is the 2687th most frequent Portuguese word.
pistas
Clues or tracks.
Here, 'pistas' refers to 'clues' or 'hints' that help in solving a puzzle or mystery.
As pistas do detetive resolveram o mistério.
The detective's clues solved the mystery.
In this case, 'pistas' means 'tracks' or specific paths prepared for skiing.
No inverno, as pistas de esqui estão lotadas.
In winter, the ski tracks are crowded.
Here, 'pistas' refers to 'cues' or indications, often metaphorical signs to guide decisions.