This is the 9684th most frequent Polish word.
zaginiony
"Zaginiony" means "missing" or "lost."
In this sentence, 'zaginiony' describes the state of the dog being missing and presumed lost.
Zaginiony pies został odnaleziony w pobliskim lesie.
The lost dog was found in the nearby forest.
Here, 'zaginionego' is used to describe the treasure that is missing, with an emphasis on mystery.
Tajemnicza historia zaginionego skarbu fascynuje wielu czytelników.
The mysterious story of the lost treasure fascinates many readers.
In this instance, 'zaginionej' refers to the person who is missing, emphasizing the act of being searched for.