Revelation 20:14 in the World English Bible
Death and Hades were thrown into the lake of fire. This is the second death, the lake of fire.
Context
13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
14 And death and hell were cast into the lake of fire. This is the second death.
15 And whosoever was not found written in the book of life was cast into the lake of fire.