This is the 6992nd most frequent Polish word.
grudziądz
Grudziądz is a city in northern Poland.
In this sentence, 'Grudziądz' acts as the proper noun indicating the name of a city.
Grudziądz to piękne miasto w Polsce.
Grudziądz is a beautiful city in Poland.
Here, 'Grudziądz' is again used as a proper noun, serving as the direct object in the sentence.
Odwiedziłem Grudziądz w zeszłym roku.
I visited Grudziądz last year.
In this example, 'Grudziądz' is a proper noun used in the locative case due to the preposition 'w', indicating the place of residence.