This is the 391st most frequent Polish word.
warszawie
"Warszawie" is the locative case of "Warszawa," meaning "in Warsaw" or "to Warsaw" in English, depending on context.
Here, 'w Warszawie' indicates the location where the action of living takes place, employing the locative case, which is paired with the preposition 'w' to denote 'in Warsaw'.
Mieszkam w Warszawie.
I live in Warsaw.
In this sentence, 'w Warszawie' specifies the place where the subject is located for a particular purpose, again using the locative case with 'w' for the context of being 'in Warsaw'.
Jestem w Warszawie, aby odwiedzić muzeum.
I am in Warsaw to visit a museum.
Here, 'w Warszawie' describes the location of the meeting, utilizing the locative case consistent with the preposition 'w' to indicate presence in Warsaw.