plural explosions
1
: the sudden, loud, and violent release of energy that happens when something (such as a bomb) breaks apart in a way that sends parts flying outward
The filmmakers staged the car's explosion.
The island was rocked by a series of volcanic explosions.
set off an explosion
2
a
: a sudden and very fast increase
The region has experienced a population explosion.
an explosion of interest
b
: a sudden expression of some strong emotion
an explosion of anger
c
: a sudden occurrence of laughter
His comments prompted an explosion of laughter from the crowd.
Cite this Entry
“Explosion.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/explosion. Accessed 19 Jun. 2026.
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