(तुरुप का पत्ता / सही युक्ति / सर्वोत्तम साधन)
A winning card / A resource used to gain an advantage over others, especially something that other people do not know about.
Synonym- Secret weapon, Key resource, Trump, Upper hand
E.g-1. She always drops the big picture and it’s the trump card.
2. Ultimately, if American society were a game Negrophobia would be its trump cards.
3. Still there are plenty of trump cards in the governor’s hand.
4. Football coach saved his star player for a trump cards.
5. China’s trump cards is mass consumer goods.