The book explores various eschatological theories.

He spoke eschatologically about the end of the world.

Eschatology is the study of the end times and the final destiny of humanity.

There are various eschatologies in different religions.

The professor gave a fascinating lecture on eschatologic theories.

Eschatologisms are beliefs or theories about the end of the world.

Eschatologism is a belief system that focuses on the study of the end times and the final destiny of humanity.