1The stock market plunged in response to the news of the company's bankruptcy, wiping out millions of dollars in investments.
2After years of hesitation, she finally decided to plunge into the world of entrepreneurship, launching her own startup.
3The hikers had to plunge into the icy waters of the river to reach the other side, a harrowing experience that left them shaken.
4The government's decision to raise interest rates caused the housing market to plunge, leaving many homeowners struggling to make their mortgage payments.
5The novel plunges the reader into a world of moral complexity, challenging their assumptions about right and wrong.