This is the 859th most frequent Ukrainian word.
успіху
"Успіху" means "success" in English.
The word 'успіху' is used in the genitive singular case to convey the wish or desire for success to someone.
Бажаю вам великого успіху в новому проєкті.
I wish you great success in the new project.
Here, 'успіху' is in the genitive singular case to indicate the context or domain of success, which is sports.
Успіху в спорті важливо досягати завдяки зусиллям.
Success in sports is important to achieve through effort.
In this case, 'успіху' is used in the genitive singular case to describe the result of someone's efforts.