This is the 2510th most frequent Portuguese word.
desapareceram
"Desapareceram" means "they disappeared."
Here, 'desapareceram' is used to describe the act of the documents vanishing or being no longer present in their expected location.
Os documentos desapareceram misteriosamente do escritório.
The documents mysteriously disappeared from the office.
In this sentence, 'desapareceram' is utilized to express the stars fading from sight due to changes in atmospheric conditions.
As estrelas desapareceram quando o céu ficou nublado.
The stars disappeared when the sky got cloudy.
This usage indicates that the friends left or were no longer present at the location after the party ended.