One who shares in a business partnership or similar arrangement.

A collaborator in a project or activity.

सहयोगी

English Usage: As a copartner in the research project, he contributed valuable insights.

Hindi Usage: अनुसंधान परियोजना में एक सहयोगी के रूप में, उसने मूल्यवान अंतर्दृष्टियाँ प्रदान कीं।