This is the 4179th most frequent Russian word.
совместном
"Совместном" means "joint" or "shared" in English, depending on context.
The word 'совместном' here describes the project as being a collaborative effort, indicating that multiple parties are working together.
Мы работаем над совместным проектом.
We are working on a joint project.
In this example, 'совместных' describes the efforts as being shared or conducted together by a group of individuals.
В результате совместных усилий мы достигли успеха.
As a result of joint efforts, we achieved success.
Here, 'совместного' characterizes the living as shared or coordinated among the individuals, referring to cohabitation.