This is the 1723rd most frequent Polish word.
specjalnego
"Specjalnego" means "special" (of something specific) in English.
used as an adjective to describe an object that is unique or holds particular significance
Mam coś specjalnego dla ciebie.
I have something special for you.
used as an adjective to specify a form of requirement that is outside the ordinary
Potrzebujesz specjalnego zezwolenia na wjazd.
You need a special permission to enter.
used as an adjective to describe a necessary exceptional method or approach involved in performing a task