Want to build your vocabulary? This vocab builder is loaded with over 3000 of the most common words found on the SAT and GRE standardized tests. This page will quiz you by showing you a word and asking you to pick the correct definition from 5 possibilities. We will automatically sort words into ones that you don't know, ones that you may know and words that you do know. You will have to correctly identify a word several times before it is moved into the "Word you know" category.