A person who acts in place of another, especially in a specific role or position.

A title held by someone who is subordinate to a chairman.

उपाध्याक्ष

English Usage: The vice chairman will take over the meeting in the chairman's absence.

Hindi Usage: अध्यक्ष की अनुपस्थिति में उपाध्याक्ष बैठक का संचालन करेगा।