slump
noun [ C ]
uk/slʌmp/ usa sudden reduction in value, quantity, etc.:
Small investors were badly hit by the stock market slump.
slump in sth There has been a 23% slump in revenue.
ECONOMICS
a period of low economic activity:
The company cut over 8000 jobs during the last economic slump.
The government must take drastic measures to lift the country out of this slump
Compare
depression
recession
slump
verb [ I ]
uk/slʌmp/ usto suddenly go down in value, quantity, etc.:
The value of shares slumped by 80% over night.
Sales slumped to an all-time low.