rally vs slump

rally

noun
  • A recovery after a decline in prices (said of the market, stocks, etc.) 

  • A sequence of strokes between serving and scoring a point. 

  • An event in which competitors drive through a series of timed special stages at intervals. The winner is the driver who completes all stages with the shortest cumulative time. 

  • A public gathering or mass meeting that is not mainly a protest and is organized to inspire enthusiasm for a cause. 

  • Good-humoured raillery. 

  • A protest or demonstration for or against something, but often with speeches and often without marching, especially in North America. 

verb
  • To recover strength after a decline in prices. 

  • To come into orderly arrangement; to renew order, or united effort, as troops scattered or put to flight; to assemble. 

  • To collect, and reduce to order, as troops dispersed or thrown into confusion; to gather again; to reunite. 

  • To collect one's vital powers or forces; to regain health or consciousness. 

  • To tease; to chaff good-humouredly. 

slump

noun
  • A period when a person goes without the expected amount of sex or dating. 

  • A measure of the fluidity of freshly mixed concrete, based on how much the concrete formed in a standard slump cone sags when the cone is removed. 

  • The gross amount; the mass; the lump. 

  • A boggy place. 

  • A heavy or helpless collapse; a slouching or drooping posture; a period of poor activity or performance, especially an extended period. 

  • The noise made by anything falling into a hole, or into a soft, miry place. 

  • A cobbler-like dessert cooked on a stove. 

verb
  • To cause to collapse; to hit hard; to render unsconscious; to kill. 

  • To collapse heavily or helplessly. 

  • To lump; to throw together messily. 

  • To fall or sink suddenly through or in, when walking on a surface, as on thawing snow or ice, a bog, etc. 

  • To slouch or droop. 

  • To decline or fall off in activity or performance. 

How often have the words rally and slump occurred in a corpus of books? (source: Google Ngram Viewer )