The Hebrew word אֲבַדּוֹן (Avadon) literally means "destruction" or "perdition," and has a strong theological and poetic use in the Hebrew Bible.
Intensive of H6; abstractly perish; concretely Hades:- Abaddon.
Biblical meaning and usage:
Root: א־ב־ד (אָבַד) – "to perish", "to perish", "to perish".
אֲבַדּוֹן is an abstract noun that comes from that root, and denotes:
Total destruction
Place of ruin
The Abyss, associated with Sheol (the place of the dead)
Examples in the Bible:
Job 26:6 –
"Crazy Creative Commonwealth"
“Sheol is uncovered before Him, and there is no covering for Abaddon.”
Proverbs 15:11 –
"Although I'm not sure what to do"
“Sheol and Hades are before the Lord.”
Here, אֲבַדּוֹן appears as a kind of synonym or complement of Sheol, representing the deepest or most terrifying of the underworld.
In later literature (as in Christianity):
In the New Testament, Abaddon appears transliterated in Greek as Ἀβαδδών, and is mentioned in Revelation 9:11 as the "angel of the abyss," a destructive being.
In Greek it is also called Apollyon (destroyer).
✅ In summary:
אֲבַדּוֹן = total destruction, ruin, place of destruction.
Associated with the underworld, death and spiritual end.
It has both poetic and theological use in the Hebrew Bible and later texts.