en_tn/rev/20/14.md

Death and Hades were thrown

This can be stated in active form. Alternate translation: "God threw Death and Hades" or "God's angel threw Death and Hades" (See: rc://en/ta/man/translate/figs-activepassive)

the second death

"dying a second time." This is described as eternal punishment in the lake of fire in Revelation 20:14 and Revelation 21:08. See how you translated this in Revelation 2:11. Alternate translation: "the final death in the lake of fire" (See: rc://en/ta/man/translate/writing-symlanguage)