Referring to a situation where two or more parties have a shared relationship or benefit.

आपसी

English Usage: Their interests were mutually beneficial.

Hindi Usage: उनके हित आपसी तौर पर लाभकारी थे।

Describing a situation where something is restricted to particular people or groups.

विशेष

English Usage: The club has exclusive membership.

Hindi Usage: क्लब की विशेष सदस्यता है।

In a way that involves two or more parties sharing an action or feeling.

आपसी रूप से

English Usage: They agreed mutually to resolve the issues.

Hindi Usage: उन्होंने आपसी रूप से समस्याओं को हल करने पर सहमति जताई।