What is the meaning of Revelation 12:9?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

And the great dragon was hurled down—that ancient serpent called the devil and Satan, the deceiver of the whole world. He was hurled to the earth, and his angels with him.

Berean Standard Bible (BSB)

The great dragon was thrown down, the old serpent, he who is called the devil and Satan, the deceiver of the whole world. He was thrown down to the earth, and his angels were thrown down with him.

World English Bible (WEB)

And{G2532} the great{G3173} dragon{G1404} was cast out{G906}{(G5681)}, that old{G744} serpent{G3789}, called{G2564}{(G5746)} the Devil{G1228}, and{G2532} Satan{G4567}, which{G3588} deceiveth{G4105}{(G5723)} the whole{G3650} world{G3625}: he was cast out{G906}{(G5681)} into{G1519} the earth{G1093}, and{G2532} his{G846} angels{G32} were cast out{G906}{(G5681)} with{G3326} him{G846}.

Strong's King James

(9) The great dragon was thrown down, the original serpent who is called the devil and the adversary that deceives the entire world. He was thrown down to the land and his angels were thrown down with him.

The F.O.G*

[9] The great dragon—that ancient serpent, called the Devil and Satan, the deceiver of all humanity—was hurled down to earth with all his angels. His role as heavenly accuser was ended; now his realm would be limited to earth.

The F.O.G Paraphrase

and the great dragon was cast forth—the old serpent, who is called ‘Devil,’ and ‘the Adversary,’ who is leading astray the whole world—he was cast forth to the earth, and his messengers were cast forth with him.

Young's Literal Translation