Synonyms for Explosion (same or very similar meaning)
WordNet sense 1 (a violent release of energy caused by a chemical or nuclear reaction):
blowup, detonationWordNet sense 2 (the terminal forced release of pressure built up during the occlusive phase of a stop consonant):
plosionWordNet sense 3 (the act of exploding or bursting something):
burstFrom the ODE community, based on WordNetadd/edit