Continuous without interruption.

बिना रुकावट के

English Usage: She traveled on a nonstop flight to New York.

Hindi Usage: उसने न्यू यॉर्क के लिए बिना रुकावट वाली उड़ान भरी।

In a continuous manner, without stopping.

लगातार

English Usage: The meeting lasted nonstop for three hours.

Hindi Usage: बैठक तीन घंटे तक लगातार चली।