Definition of "Explosion" :

noun: the act of exploding or bursting

"The explosion of the firecrackers awoke the children."

noun: a golf shot from a bunker that typically moves sand as well as the golf ball

noun: a sudden outburst

"An explosion of laughter."

noun: the terminal forced release of pressure built up during the occlusive phase of a stop consonant

noun: a violent release of energy caused by a chemical or nuclear reaction

noun: the noise caused by an explosion

"The explosion was heard a mile away."

noun: a sudden great increase

"The population explosion."