Annihilation is the total destruction of something. In World War II, our nuclear bombs resulted in the annihilation of Hiroshima.

If you spill milk on your textbooks, it won’t result in annihilation — this word is much more serious. After an annihilation, there's nothing left but total, horrific destruction, like a wild fire completely wiping out a forest or a tsunami sweeping away a seaside town. This word has an end-of-the-world feel to it: many religions have stories of annihilation of some sort, resulting in the end of everything.

Definitions of annihilation

n destruction by annihilating something

atomisation, atomization
annihilation by reducing something to atoms
pulverisation, pulverization
annihilation by pulverizing something
vaporisation, vaporization
annihilation by vaporizing something
Type of:
destruction, devastation
the termination of something by causing so much damage to it that it cannot be repaired or no longer exists

n total destruction

“bomb tests resulted in the annihilation of the atoll”
extermination, extinction
complete annihilation
Type of:
demolition, destruction, wipeout
an event (or the result of an event) that completely destroys something

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