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.
Hint: You'll need approximately four hours to complete this free, online GRE practice test. You should take it in a quiet place where you'll have a consistent internet connection and no interruptions. Remember, no matter how you score on your free practice exam, use what you learn as a starting point for informing the rest of your GRE prep plan. We're here to help guide you â through the practice test and beyond.