A blow or hit, especially with a fist.

An error or mistake, often used in a colloquial context.

गलती

English Usage: That was a real biff in the presentation.

Hindi Usage: यह प्रस्तुति में एक असली गलती थी।

To hit or strike with a fist.

मुक्का मारना

English Usage: He biffed the punching bag during training.

Hindi Usage: उसने प्रशिक्षण के दौरान पंचिंग बैग पर मुक्का मारा।