collaborative effort

Translations
совместные усилия
The project was a collaborative effort between several departments.
Проект был совместными усилиями нескольких отделов.
Definitions
A collaborative effort refers to a joint action or project undertaken by multiple individuals or groups working together towards a common goal, combining their skills, resources, and ideas to achieve a desired outcome.
Words
effort

noun
усилие
collaborative

adjective
совместный