A rapid descent or decline, often referring to performance or value.

तेज गिरावट

English Usage: The company's stock took a nose dive after the bad news was announced.

Hindi Usage: कंपनी का शेयर मूल्य बुरी खबर के बाद तेज गिरावट पर चला गया।

To plunge downward quickly.

तेजी से नीचे गिरना

English Usage: The airplane began to nose dive when the engines failed.

Hindi Usage: जब इंजनों ने काम करना बंद कर दिया, तो विमान तेजी से नीचे गिरने लगा।