Noun outburst has 3 senses
  1. effusion, gush, outburst, blowup, ebullition - an unrestrained expression of emotion
    --1 is a kind of expression, manifestation, reflection, reflexion
    --1 has particulars: acting out; cry; explosion; flare
  2. outburst, burst, flare-up - a sudden violent happening; "an outburst of heavy rain"; "a burst of lightning"
    --2 is a kind of happening, occurrence, natural event
    --2 has particulars: salvo; rush
  3. outburst, tumultuous disturbance - a sudden violent disturbance
    --3 is a kind of disturbance