This is the 84th most frequent Polish word.
koniec
"End" or "finish."
Here, 'koniec' refers to the conclusion or final part of something, in this case, a film.
To jest koniec filmu.
This is the end of the movie.
In this example, 'koniec' denotes the final section or last part of something, namely, a book.
Gdzie jest koniec tej książki?
Where is the end of this book?
Here, 'na koniec' is used as a phrase meaning 'at the end,' indicating the concluding period of an event, such as a lesson.