Strong’s Greek
G4756 — stratia
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
στρατιά
stratia — pronounced strat-ee'-ah
feminine of a derivative of stratos (an army; from the base of 4766, as encamped); camp-likeness, i.e. an army, i.e. (figuratively) the angels, the celestial luminaries:--host. see GREEK for 4766
2 occurrences in the KJV.
Luke 2:13
And suddenly there was with the angel a multitude of the heavenly host praising God, and saying,
Acts 7:42
Then God turned, and gave them up to worship the host of heaven; as it is written in the book of the prophets, O ye house of Israel, have ye offered to me slain beasts and sacrifices by the space of forty years in the wilderness?