STRONG'S WORD STUDY

G3 — Ἀβαδδών

Abaddōn · Abaddon · Greek

Ἀβαδδών (Heb. אֲבַדּוֹן, destruction; LXX, ἀπώλεια, only in Wisdom Lit., of the place of the ruined dead: Job.26:6, 28:22, 31:12, Psa.88:12, Pro.15:11*), indecl.; in NT, Abaddon, the angel of the Abyss: Rev.9:11.† (AS)

KJV BSB WEB ASV YLT

1 tagged verse occurrence

Revelation 9:11 · Ἀβαδδών,They were ruled by a king, the angel of the Abyss. His name in Hebrew is Abaddon, and in Greek it is Apollyon.