OET interlinear REV 20:14

uW Translation Notes:

Note 1 topic: figures-of-speech / activepassive

ὁ θάνατος καὶ ὁ ᾍδης ἐβλήθησαν

¬the death ¬the ¬the death (Some words not found in SR-GNT: Καί ὁ θάνατος καί ὁ ᾍδης ἐβλήθησαν εἰς τήν λίμνην τοῦ πυρός Οὗτος ὁ θάνατος ὁ δεύτερος ἐστίν ἡ λίμνη τοῦ πυρός)

If your language does not use this passive form, you could express the idea in active form or in another way that is natural in your language. If you need to say who did the action, the context suggests that it was God. Alternate translation: [God threw Death and Hades]

Note 2 topic: figures-of-speech / doublet

ὁ θάνατος καὶ ὁ ᾍδης ἐβλήθησαν

¬the death ¬the ¬the death (Some words not found in SR-GNT: Καί ὁ θάνατος καί ὁ ᾍδης ἐβλήθησαν εἰς τήν λίμνην τοῦ πυρός Οὗτος ὁ θάνατος ὁ δεύτερος ἐστίν ἡ λίμνη τοῦ πυρός)

In this context, Death and Hades are two names for the same place. John is using the names together for emphasis. If it would be clearer for your readers, you could express the emphasis with a single phrase. Alternate translation: [the entire underworld was thrown] or [God threw the entire underworld]

Note 3 topic: translate-ordinal

ὁ θάνατος ὁ δεύτερός

¬the death ¬the ¬the death the (Some words not found in SR-GNT: Καί ὁ θάνατος καί ὁ ᾍδης ἐβλήθησαν εἰς τήν λίμνην τοῦ πυρός Οὗτος ὁ θάνατος ὁ δεύτερος ἐστίν ἡ λίμνη τοῦ πυρός)

If your language does not use ordinal numbers, you could use a cardinal number here or an equivalent expression. Alternate translation: [death number two]