concerted

US /kənˈsɝː.t̬ɪd/
UK /kənˈsɝː.t̬ɪd/
1.

bersatu

planned or done together for a shared purpose:

:
•
The richer countries of the world should take concerted action to help the poorer countries.
:
concertin concert withconcert hallpromenade concert