HinKhoj Dictionary

Black comedy: creating comedy out of a tragic event or situation (एक दुखद घटना या स्थिति से कॉमेडी बनाना या करना)
Pitch black: somewhere that is very dark, and you are unable to see anything (अँधेरा जहाँ आपको किसी चीज़ को देखना बहुत मुश्किल हो)
Black sheep: a person who has done something bad that brings embarrassment or shame to his or her family (कुल-कलंक)
Black day: a bad day; often used before the name of a particular day to symbolize a tragic event (बुरा दिन)
Black out: to become unconscious suddenly but for a short period (बेहोश हो जाना)
Black out: cause the lights in a place to be extinguished, typically as a result of a failure in the electricity supply (अँधेरा होना या करना)