This is the 16880th most frequent Russian word.
совместными
"Joint" or "combined."
In this sentence, 'совместными' describes the attribute of 'усилиями' (efforts), indicating that the efforts were conducted collectively or together.
Мы достигли успеха совместными усилиями.
We achieved success through joint efforts.
Here, 'совместными' modifies 'действиями' (actions), emphasizing the teamwork or cooperation required for the actions.
Решение проблемы возможно только совместными действиями.
The problem can only be solved through collaborative actions.
This sentence uses 'совместными' to describe 'проектами' (projects), signifying that the projects were conducted in collaboration with others.