This is the 10098th most frequent Portuguese word.
egípcias
"Egípcias" means "Egyptian" (feminine plural) in English.
In this sentence, 'egípcias' functions as an adjective qualifying the noun 'pirâmides,' specifying which pyramids are being referred to — those that are Egyptian.
As pirâmides egípcias são um dos grandes mistérios da humanidade.
The Egyptian pyramids are one of the great mysteries of humanity.
Here, 'egípcias' again serves as an adjective, describing the type of dances being discussed — those originating from Egypt.
As danças egípcias têm movimentos fluidos e expressivos.
Egyptian dances have fluid and expressive movements.
Similarly, 'egípcias' is used as an adjective to indicate the geographical origin or cultural association of the statues — they are Egyptian.