A person, thing, or event that is the reason for something happening.

A principle, aim, or movement that one supports or is involved with.

उद्देश्य

English Usage: She dedicated her life to the cause of environmental conservation.

Hindi Usage: उसने अपने जीवन को पर्यावरण संरक्षण के उद्देश्य के लिए समर्पित कर दिया।

Famous or renowned, particularly in a specific context.

प्रसिद्ध

English Usage: The cause célèbre of the trial attracted nationwide attention.

Hindi Usage: परीक्षण का प्रसिद्ध मामला राष्ट्रव्यापी ध्यान आकर्षित किया।