This is the 1188th most frequent Portuguese word.
culturais
"Culturais" means "cultural" in English.
Here, 'culturais' describes the nature of the experiences being related to culture.
O evento permite a troca de experiências culturais entre os participantes.
The event allows for the exchange of cultural experiences among the participants.
In this context, 'culturais' qualifies the practices as pertaining to culture.
As práticas culturais variam de uma região para outra.
Cultural practices vary from one region to another.
In this case, 'culturais' characterizes the festivals, indicating that they revolve around cultural aspects.