DictionaryescalateIncrease in scale or seriousness
verb

escalate

ES-kuh-layt/ˈeskəleɪt/

To raise something to a higher level.

The fire escalates from a modest flame to a tall, vigorous blaze.

Three small left-to-right vignettes show the same fire escalating from a modest flame to increasingly tall, vigorous flames, making the rise in intensity immediately visible.
Etymology

From the moving staircase, escalate first meant to use an escalator. Physical ascent became figurative “raising,” initially in nuclear-war scenarios, giving the modern sense of increasing intensity, seriousness, or cost.

In context

Lung Health5:03
One of the more infamous side effects of ACE inhibitors is a chronic dry cough, which in rare cases can escalate into coughing fits that disrupt sleep
Coughing Fits | Sudden Attacks With Gagging and Vomiting

More examples

  • Repair costs escalated as workers discovered more damage.
  • The agent escalates unresolved complaints to a supervisor.
  • Both sides want to avoid escalating the conflict.

Forms

escalate · escalates · escalated · escalating

escalation noun — An increase in intensity, seriousness, or scope.

Similar words

increase
Increase is broader and need not suggest greater seriousness.
intensify
Intensify emphasizes greater strength rather than size or authority level.