an agreement or cooperation among parties

समझौता

English Usage: Their concerted effort led to the project's success.

Hindi Usage: उनका संयुक्त प्रयास परियोजना की सफलता का कारण बना।

an endeavor done together by two or more individuals

संयुक्त प्रयास

English Usage: The success was a result of their mutual work and joint effort.

Hindi Usage: सफलता उनके साझा काम और संयुक्त प्रयास का परिणाम था।