This is the 10215th most frequent Polish word.
burger
A sandwich consisting of a cooked meat patty, typically beef, placed inside a sliced bread roll, often with additional toppings.
The word 'burger' is used here as a noun representing a specific food dish.
Zjadłem pysznego burgera na obiad.
I ate a delicious burger for lunch.
The word 'burgerowej' is an adjectival form derived from 'burger', used to describe a type of restaurant specializing in burgers.
Czy spróbowałeś już nowej restauracji burgerowej?
Have you tried the new burger restaurant yet?
The word 'burgery' is a plural form used as a noun and refers to the food item in plural.