"outburst" in the noun sense
1. effusion, gush, outburst, blowup, ebullition
an unrestrained expression of emotion
2. outburst, burst, flare-up
a sudden intense happening
"an outburst of heavy rain"
"a burst of lightning"
3. outburst, tumultuous disturbance
a sudden violent disturbance
Source: WordNet® (An amazing lexical database of English)
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