Strong’s Greek
G717 — Armageddon
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
Ἁρμαγεδών Ἃρ Μαγεδών
Armageddon — pronounced ar-mag-ed-dohn'
of Hebrew origin (2022 and 4023); Armageddon (or Har-Meggiddon), a symbolic name:--Armageddon. see HEBREW for 02022 see HEBREW for 04023
1 occurrence in the KJV.
Revelation 16:16
And he gathered them together into a place called in the Hebrew tongue Armageddon.