verb
to decrease suddenly and sharply in financial value or price
the stock plummeted 60 points when the story broke
Synonyms: dip, drop, fall, nose-dive, plunge, skid, tumble
Related Word: decline, decrease, descend, sink; dump; precipitate; collapse, crash
Idioms: take a sudden downturn ( or downtrend)
Contrasted words: increase; rise; shoot up
Antonyms: skyrocket, soar