culmination

US /ˌkʌl.məˈneɪ.ʃən/
UK /ˌkʌl.məˈneɪ.ʃən/
1.

đỉnh điểm

the point at which an event or series of events ends, having developed until it reaches this point:

:
Winning first prize was the culmination of years of practice and hard work.