outbreak

The definition of an outbreak is a sudden increase, outburst or riot.

(noun)

An example of an outbreak is five cases of whooping cough increasing to fifty cases overnight.

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See outbreak in Webster's New World College Dictionary

noun

  1. a breaking out; sudden occurrence, as of disease or war
  2. an insurrection or riot

See outbreak in American Heritage Dictionary 4

noun
  1. A sudden increase: an outbreak of influenza.
  2. A sudden eruption; an outburst: “an outbreak of strikes, violent agitation, and arrests” (Samuel Chew).

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