plunges
plun-ges
verb
Decreases suddenly and significantly, often in value or amount.
"The share price plunges after the news."
verb
Moves or falls quickly and suddenly into or through something.
"The diver plunges into the cold water."
Thesaurus
Synonyms: plunge, dump, dunk, dip, souse, douse, immerse, engulf, steep, engross, absorb, soak up