This is the 14193rd most frequent Polish word.
premierowym
"Premierowym" means "premiere" or "debut" (adjective, relating to a first performance or showing).
The word 'premierowych' refers to 'premiere screenings', describing the special shows marking the debut of a film.
Film w kinie jest teraz wyświetlany podczas pokazów premierowych.
The movie in the cinema is now being shown during premiere screenings.
The word 'premierowy' here describes the program that is novel or being introduced for the first time.
Przygotowujemy premierowy program na następną konferencję.
We are preparing a premiere program for the next conference.
The word 'premierowego' modifies the performance, indicating it is the first official presentation.