<p>What most people in your situation do is to just read through a long list and highlight the few hundred words they don’t know. It doesn’t take long at all, half a day at absolute most. I strongly recommend that you take the time to look over such a list and find the words that * you personally * don’t know: there will inevitably be some fairly easy words that you don’t know even if you have a big vocabulary, just as there will inevitably be some fairly difficult words that you do know even if you have a small vocabulary.</p>
<p>That said, I have a list available that has been * sorted * by difficulty. This list is just a collection of vocabulary from a bunch of past, real exams (I gathered all the words and then tagged them by their frequency in English). Just go to
[Real</a> Vocabulary: SAT (1900 Words)](<a href=“http://www.realvocabulary.com/SAT.htm]Real”>http://www.realvocabulary.com/SAT.htm). The list starts with very easy words. Scroll down until you start seeing words you don’t know.</p>