crowning accomplishment

Translations
высшее достижение
Winning the Nobel Prize was the crowning accomplishment of his career.
Получение Нобелевской премии было высшим достижением его карьеры.
Definitions
A crowning accomplishment refers to the most significant or outstanding achievement in a person's life or career, often seen as the pinnacle of their efforts and contributions.
Words
crowning

adjective
венчающий
accomplishment

noun
достижение