Revelation 12:4 καὶ ἡ οὐρὰ αὐτοῦ σύρει τὸ τρίτον τῶν ἀστέρων τοῦ οὐρανοῦ καὶ ἔβαλεν αὐτοὺς εἰς τὴν γῆν καὶ ὁ δράκων ἕστηκεν ἐνώπιον τῆς γυναικὸς τῆς μελλούσης τεκεῖν, ἵνα ὅταν τέκῃ τὸ τέκνον αὐτῆς καταφάγῃ.
His tail drew one third of the stars of the sky, and threw them to the earth. The dragon stood before the woman who was about to give birth, so that when she gave birth he might devour her child.
Noun: Nominative Singular Masculine

Revelation 12:7 Καὶ ἐγένετο πόλεμος ἐν τῷ οὐρανῷ ὁ Μιχαὴλ καὶ οἱ ἄγγελοι αὐτοῦ τοῦ πολεμῆσαι μετὰ τοῦ δράκοντος καὶ ὁ δράκων ἐπολέμησεν καὶ οἱ ἄγγελοι αὐτοῦ,
There was war in the sky. Michael and his angels made war on the dragon. The dragon and his angels made war.
Noun: Nominative Singular Masculine

Revelation 12:9 καὶ ἐβλήθη ὁ δράκων ὁ μέγας, ὁ ὄφις ὁ ἀρχαῖος, ὁ καλούμενος Διάβολος καὶ ὁ Σατανᾶς, ὁ πλανῶν τὴν οἰκουμένην ὅλην, ἐβλήθη εἰς τὴν γῆν καὶ οἱ ἄγγελοι αὐτοῦ μετ' αὐτοῦ ἐβλήθησαν.
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.
Noun: Nominative Singular Masculine

Revelation 12:13 Καὶ ὅτε εἶδεν ὁ δράκων ὅτι ἐβλήθη εἰς τὴν γῆν, ἐδίωξεν τὴν γυναῖκα ἥτις ἔτεκεν τὸν ἄρσενα.
When the dragon saw that he was thrown down to the earth, he persecuted the woman who gave birth to the male child.
Noun: Nominative Singular Masculine

Revelation 12:16 καὶ ἐβοήθησεν ἡ γῆ τῇ γυναικί καὶ ἤνοιξεν ἡ γῆ τὸ στόμα αὐτῆς καὶ κατέπιεν τὸν ποταμὸν ὃν ἔβαλεν ὁ δράκων ἐκ τοῦ στόματος αὐτοῦ.
The earth helped the woman, and the earth opened its mouth and swallowed up the river which the dragon spewed out of his mouth.
Noun: Nominative Singular Masculine

Revelation 12:17 καὶ ὠργίσθη ὁ δράκων ἐπὶ τῇ γυναικί καὶ ἀπῆλθεν ποιῆσαι πόλεμον μετὰ τῶν λοιπῶν τοῦ σπέρματος αὐτῆς τῶν τηρούντων τὰς ἐντολὰς τοῦ θεοῦ καὶ ἐχόντων τὴν μαρτυρίαν Ἰησοῦ. καὶ ἐστάθη ἐπὶ τὴν ἄμμον τῆς θαλάσσης.
The dragon grew angry with the woman, and went away to make war with the rest of her seed, who keep God's commandments and hold Jesus' testimony.
Noun: Nominative Singular Masculine

Revelation 13:2 καὶ τὸ θηρίον ὃ εἶδον ἦν ὅμοιον παρδάλει καὶ οἱ πόδες αὐτοῦ ὡς ἄρκου καὶ τὸ στόμα αὐτοῦ ὡς στόμα λέοντος καὶ ἔδωκεν αὐτῷ ὁ δράκων τὴν δύναμιν αὐτοῦ καὶ τὸν θρόνον αὐτοῦ καὶ ἐξουσίαν μεγάλην.
The beast which I saw was like a leopard, and his feet were like those of a bear, and his mouth like the mouth of a lion. The dragon gave him his power, his throne, and great authority.
Noun: Nominative Singular Masculine

Revelation 13:11 Καὶ εἶδον ἄλλο θηρίον ἀναβαῖνον ἐκ τῆς γῆς καὶ εἶχεν κέρατα δύο ὅμοια ἀρνίῳ καὶ ἐλάλει ὡς δράκων.
I saw another beast coming up out of the earth. He had two horns like a lamb, and he spoke like a dragon.
Noun: Nominative Singular Masculine