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.
Yes, 3 months are sufficient to prepare for the GRE, provided you have a basic proficiency in English language and Quantitative ability sections, respectively. For the verbal ability you must adopt a two-pronged strategy. Primarily, you should try and bolster your vocabulary.