King James Bible
And death and hell were cast into the lake of fire. This is the second death.

New King James Version
Then Death and Hades were cast into the lake of fire. This is the second death.

American Standard Version
And death and Hades were cast into the lake of fire. This is the second death, even the lake of fire.

Berean Study Bible
Then Death and Hades were thrown into the lake of fire. This is the second death—the lake of fire.

Douay-Rheims Bible
And hell and death were cast into the pool of fire. This is the second death.

English Revised Version
And death and Hades were cast into the lake of fire. This is the second death, even the lake of fire.

World English Bible
Death and Hades were thrown into the lake of fire. This is the second death, the lake of fire.

Young's Literal Translation
and the death and the hades were cast to the lake of the fire -- this is the second death;

Revelation 20:14 Additional Translations ...