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escalation (EN)
noun

noun “escalation”

singular escalation, plural escalations or uncountable
  1. a rapid increase in the intensity or seriousness of something
    The sudden storm caused an escalation in emergency service calls throughout the city.
  2. an increase in the level of conflict or violence
    The invasion led to an escalation of the conflict between the two countries.
  3. (in business) the process of transferring a customer's issue to someone with more authority or expertise
    Unable to solve the problem, the customer service agent initiated an escalation to the technical specialist.