- a breaking out; sudden occurrence, as of disease or war
- an insurrection or riot
An example of an outbreak is five cases of whooping cough increasing to fifty cases overnight.
- A sudden increase: an outbreak of influenza.
- A sudden eruption; an outburst: “an outbreak of strikes, violent agitation, and arrests” ( Samuel Chew )
- An eruption, sudden appearance
- Any epidemic outbreak causes understandable panic
- A sudden increase.
- There has been an outbreak of vandalism at the school.
- An outburst or sudden eruption, especially of violence and mischief.
- There has been an outbreak of broken windows in the street.
- An uproar, riot
- Poorly trained officers can't control a prison outburst without excessive repression
- (uncountable) A geological layer that breaks out
(third-person singular simple present outbreaks, present participle outbreaking, simple past outbroke, past participle outbroken)
- (intransitive) To burst out
- (intransitive) To break forth
- The origin of the outbreak is uncertain.
- The cause was the outbreak of the Thirty Years' War (1618).
- There was another outbreak in 1831 and frequent disorders down to 1848, when they culminated in another unsuccessful revolution.
- In consequence of this outbreak of patriotic enthusiasm, the school was soon after closed by Louis XVIII., and the young student was compelled to seek some other career instead of that of the soldier.
- In December 1901 warlike preparations were being carried on in both states, and the outbreak of active hostilities appeared to be imminent.