Usage Note
Estallar is used for physical explosions (la bomba estalló) and figurative outbursts (estalló una guerra, estalló de risa — 'burst out laughing'). Do not confuse with explotar, which additionally means 'to exploit someone'. The noun is estallido (m): un estallido de aplausos ('a burst of applause').
Examples
"La bomba estalló sin causar heridos."
Natural Translation
The bomb exploded without causing injuries.

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