Past tense of cancel; to have officially decided that something will not happen.

रद्द कर दिया

English Usage: She cancelled her appointment due to a scheduling conflict.

Hindi Usage: उसने समय-सारणी के संघर्ष के कारण अपनी अपॉइंटमेंट रद्द कर दी।

The act of canceling something; the state of being canceled.

रद्द करना

English Usage: The cancellation of the event was unexpected.

Hindi Usage: कार्यक्रम का रद्द करना अप्रत्याशित था।