This is the 11630th most frequent Polish word.
klatek
"Klatek" is the genitive plural form of "klatka," which means "cage," "frame," or "chest" (as in the ribcage) in English.
Klatek in this sentence refers to 'frames' in the context of video or cinema production, still as a plural form.
Ten film składa się z dwudziestu czterech klatek na sekundę.
This movie consists of twenty-four frames per second.
Klatek represents 'klatka' referring to 'stairwell,' indicating a part of the building, grammatically plural genitive.
Znaleziono stare klatek schodowych w opuszczonym budynku.
Old stairwells were found in the abandoned building.
Klatek here is used as the genitive plural form of 'klatka,' meaning 'cage.'