Abaddon

Concise Bible Dictionary:

Strong’s Dictionary of Greek Words:

Greek:
Ἀβαδδών
Transliteration:
Abaddon
Phonic:
ab-ad-dohn’
Meaning:
of Hebrew origin (11); a destroying angel
KJV Usage:
Abaddon

Jackson’s Dictionary of Scripture Proper Names:

destruction

Potts’ Bible Proper Names:

Complete destruction;.a destroying angel:―the bottomless pit, Hades [APOLLYON], Rev. 9:11. {Exitium absolutum}