This is the 497th most frequent Polish word.
lublinie
"Lublinie" means "in Lublin," referring to the city of Lublin in Poland.
Here, 'w Lublinie' indicates the locative case, used to denote the location where something resides or occurs.
Mieszkam w Lublinie od pięciu lat.
I have been living in Lublin for five years.
In this sentence, 'w Lublinie' also uses the locative case to specify the place of the event.
Konferencja naukowa odbyła się w Lublinie.
The scientific conference took place in Lublin.
The phrase 'w Lublinie' here still reflects the locative form, utilized to ask about presence in a specific location.