Collins COBUILD Advanced Learner's English Dictionary - slump

(slumps, slumping, slumped) 1. If something such as the value of something slumps, it falls suddenly and by a large amount. Net profits slumped by 41%... Government popularity in Scotland has slumped to its lowest level since the 1970s. VERB: V prep, V prep, also V • Slump is also a noun. ...a slump in property prices. N-COUNT: oft N in n 2. A slump is a time when many people in a country are unemployed and poor. ...the slump of the early 1980s. = recession N-COUNT 3. If you slump somewhere, you fall or sit down there heavily, for example because you are very tired or you feel ill. She slumped into a chair... He saw the driver slumped over the wheel. VERB: V prep/adv, V-ed