Catastrophe definition, a sudden and widespread disaster: the catastrophe of war. See more.
1 Total Time: The computer-delivered GRE takes 3 hours and 45 minutes for the average student.  Experts recommend sitting for the GRE exam one year prior to entering graduate school. This allows for ample study time and the option to retake it if desired.
The GRE is a 3 hour 45 minute computerâadaptive test (CAT) that has three sections: an Analytical Writing Assessment, a Quantitative Section and a Verbal Section. Here's an overivew of what's on each section of the GRE. GRE Format.