This is the 13646th most frequent Polish word.
pochowana
"Buried" (feminine singular form).
In this sentence, "pochowana" is used to indicate that Maria's body was interred in a burial ceremony at a specific location.
Maria została pochowana na cmentarzu w swoim rodzinnym mieście.
Maria was buried in the cemetery in her hometown.
Here, "pochowana" means 'hidden,' used metaphorically to describe the placement of the book among papers.
Książka była pochowana na dnie stosu papierów na biurku.
The book was hidden at the bottom of the pile of papers on the desk.
In this example, "pochowana" describes someone being 'withdrawn' or figuratively 'buried' in her thoughts or feelings.