This is the 8873rd most frequent Polish word.
sarajewie
"Sarajewie" is the locative case of "Sarajewo," meaning Sarajevo, the capital city of Bosnia and Herzegovina.
The word 'Sarajewie' is used here in the locative case to indicate location.
Byłem w Sarajewie zeszłego roku.
I was in Sarajevo last year.
The word 'Sarajewie' is again in the locative case and specifies the place of the meeting.
Spotkaliśmy znajomych w Sarajewie na wakacjach.
We met friends in Sarajevo during the holidays.
Here, 'Sarajewiem' appears in the instrumental case to describe a relationship of accompaniment or reference.