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.
One-year access may also be purchased here for $30. Manhattan GREâs Online Section Adaptive Exams give the most detailed feedback of any online GRE exams. For each question, youâll see difficulty level, time spent, cumulative time spent, and category, and you can click on each problem for a detailed explanation.