the practice of outdoing someone else; a situation in which one person gains an advantage over another

एक के मुकाबले दूसरे को उन्नति करना

English Usage: His constant one upmanship in the office made the team competitive rather than collaborative.

Hindi Usage: कार्यालय में उसका लगातार एक के मुकाबले दूसरे को उन्नति करना टीम को प्रतिस्पर्धात्मक बना दिया बजाय सहयोगात्मक के।