This is the 4031st most frequent Polish word.
węgier
The Polish word "węgier" means "Hungarian."
In this sentence, 'Węgier' is used as a noun, referring to a person of Hungarian nationality.
Mój przyjaciel jest Węgier i mieszka w Budapeszcie.
My friend is a Hungarian and lives in Budapest.
Here, 'Węgier' is used as a proper noun to refer to the country Hungary (although the proper term for the country is 'Węgry', this illustrates a misused yet common form.
Węgier jest krajem pełnym historii i pięknych zabytków.
Hungary is a country full of history and beautiful monuments.
In this sentence, 'Węgier' is used again to refer to a person from Hungary, emphasizing interaction.