This is the 886th most frequent Czech word.
zaplatí
"Zaplatí" means "will pay" in English.
'Zaplatí' is used here as 'to pay', indicating who will pay for something.
Zaplatí za oběd v restauraci.
They will pay for lunch at the restaurant.
'Zaplatí' is part of a hypothetical question, showing concern about overpaying.
Co když zaplatí příliš mnoho?
What if they pay too much?
'Zaplatí' conveys a habitual action in the form of third-person future tense.