Questions & Answers about У магазині дев’ять вікон.
Because after у meaning in, Ukrainian uses the locative case for the noun.
So:
- магазин = store dictionary form
- у магазині = in the store
This is a very common pattern:
- у місті = in the city
- у будинку = in the building
- у магазині = in the store
Yes. У and в often both mean in.
The choice is usually made for ease of pronunciation and rhythm. Ukrainian often alternates у and в to avoid awkward sound combinations.
So both of these can be natural:
- У магазині дев’ять вікон
- В магазині дев’ять вікон
The version with у is completely normal here.