This is the 2827th most frequent Polish word.
klatki
"Cases," "cages," or "frames" (plural of "klatka").
The word 'klatek' (a genitive plural form of 'klatka') is used here to refer to cages where animals are kept, showcasing its most common usage.
W zoo opisywano historię pewnych klatek na zwierzęta.
At the zoo, they were describing the history of certain cages for animals.
Here, 'klatki' is used to describe the frameworks or stands for physical exercises, indicating a specialized meaning.
Na siłowni widziałem klatki do podciągania.
At the gym, I saw pull-up bars stands.
In this case, 'klatka' refers to a staircase (specifically, 'klatka schodowa' meaning 'staircase' or 'stairway'), showing its architectural or spatial usage.