A weapon designed to be fired underwater, used especially in warfare.

A term referring to something that has failed or fallen behind in a significant way, often used metaphorically.

विफलता

English Usage: The project was a complete torpedo, failing to meet any of its goals.

Hindi Usage: यह परियोजना पूरी तरह से विफलता थी, जिसका कोई भी लक्ष्य हासिल नहीं किया गया।