significant milestone

Translations
значительная веха
The launch of the new product was a significant milestone for the company.
Запуск нового продукта был значительной вехой для компании.
Definitions
A significant milestone is an important event or achievement that marks a notable point in a process, project, or journey, often indicating progress or a turning point.
Words
milestone

noun
веха
significant

adjective
значительный