Definition of Abaddon in English:

Abaddon

proper noun

  • (in the Bible) a name for the Devil or for hell.

    the netherworld, the abode of the dead, the land of the dead, the infernal regions, the inferno, the nether regions, the abyss
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Origin

Late Middle English: via Greek from Hebrew 'ăḇaddōn ‘destruction’. Its use for ‘hell’ arose in the late 17th century.

Pronunciation

Abaddon

/əˈbædn//əˈbadn/