According to Kaplan, all you need is a fundamental understanding of the concept. Based on this general understanding, you can eliminate choices and make educated guesses. For example did you know that when looking for an antonym, you can drop choices that are the same in meaning because the GRE folk will never have you choose between 2 similar words. You can also ignore the choices that have no clear antonyms. These tips make it so much easier! All you really have to know is the concept of positive and negative charges. IF a word has a positive charge ten you can look for an antonym with a negative charge.
Ahhh concepts. They are so refreshing. And make life so much easier.
11 more days until the GRE!