This is the 2826th most frequent Polish word.
kinie
"Kinie" is not a standalone Polish word; it may be a colloquial or incorrect form of "kinie" (locative case of "kino"), meaning "at the cinema."
Here, 'kinie' is a locative singular form of 'kino,' meaning 'cinema,' used to indicate location in response to 'where?' (e.g., in the cinema).
Byłem w kinie wczoraj wieczorem.
I was at the cinema last night.
In this sentence, 'kinie' is again the locative singular form of 'kino,' signifying the place where an action (seeing the movie) occurred.
Opowiadała o najbardziej fascynującym filmie, jaki widziała w kinie.
She talked about the most fascinating movie she saw in the cinema.
'Kinie' is used here to specify the location ('in the cinema') where the speaker dreams of working.