This is the 2130th most frequent Polish word.
ozdobą
"Ornament" or "decoration."
The word 'ozdobą' is utilized here in its instrumental case form to describe an object functioning as an adornment or decoration for the room.
Ten obraz na ścianie jest ozdobą pokoju.
This painting on the wall is the ornament of the room.
Here, 'ozdobą' indicates something that beautifies or enhances the appearance of another object—in this case, an accessory for clothing.
Piękny naszyjnik był ozdobą stroju balowego.
The beautiful necklace was the adornment of the ball gown.
In this sentence, 'ozdobą' symbolizes something appreciated or cherished, indicating that the presence of someone is likened to a decorative enhancement for the event.