2 Peter 3:6

through which the world of that time perished in the flood.

Berean Standard Bible
Other translations

King James Version

Whereby the world that then was, being overflowed with water, perished:

World English Bible

by which means the world that existed then, being overflowed with water, perished.

American Standard Version

by which means the world that then was, being overflowed with water, perished:

Geneva Bible 1599

Wherefore the worlde that then was, perished, ouerflowed with the water.

Darby Translation

through which [waters] the then world, deluged with water, perished.

Young's Literal Translation

through which the then world, by water having been deluged, was destroyed;

Bible in Basic English

And that the world which then was came to an end through the overflowing of the waters.

In context

5But they deliberately overlook the fact that long ago by God’s word the heavens existed and the earth was formed out of water and by water,

7And by that same word, the present heavens and earth are reserved for fire, being kept for the day of judgment and destruction of ungodly men.

Read 2 Peter 3