This is the 147th most frequent Czech word.
konci
"Končí" means "ends" or "is ending" in English.
Here, 'končí' is used as a verb in the present tense meaning 'ends' or 'is ending', describing the conclusion of an event.
Film končí v devět hodin.
The movie ends at nine o'clock.
In this sentence, 'konci' is used as a noun in the locative case, meaning 'at the end', specifying a position or part of something.
Na konci knihy je překvapení.
At the end of the book, there is a surprise.
Here, 'končí' functions as a verb in the present tense meaning 'are finishing', indicating the act of completing an action.