This is the 18066th most frequent Polish word.
żurawiną
"Żurawiną" means "cranberry" in English.
In this sentence, "żurawiną" is used in the instrumental case to indicate that cranberry is an ingredient accompanying yogurt.
Na śniadanie miałem jogurt z żurawiną.
For breakfast, I had yogurt with cranberry.
Here, "żurawiną" appears in the instrumental case again, showing that cranberry is the substance used to sprinkle the dessert.
Obficie posypałem deser żurawiną.
I generously sprinkled the dessert with cranberry.
"Żurawiną" in this context is in the instrumental case, denoting cranberry as the ingredient used for sweetening the beverage.