A mistake or error

A defect or imperfection

दोष

English Usage: The car has a fault in the engine.

Hindi Usage: कार में इंजन में एक दोष है।

To criticize someone for a mistake

दोष देना

English Usage: Don't fault him for trying his best.

Hindi Usage: उसकी पूरी कोशिश करने के लिए उसे दोष मत दो।