A strong vocabulary is often an indicator of academic achievement, which is why the SAT Critical Reading section uses so many challenging vocabulary words in both the Sentence Completion and Reading Comprehension questions.

Fortunately for the test taker, many of these words are used recurrently on multiple tests, which is why PowerScore has analyzed over 50 tests to bring you the most commonly-occurring vocabulary words on the SAT.

The SAT Vocab Spinner iPhone application contains the top 400 SAT words by difficulty level—Easy, Medium, Hard, and Extreme—and you are sure to encounter a large majority of them throughout your SAT study and testing experience. In addition to a standard definition, you have the option of viewing the word in a sentence along with common word variations to help you increase retention and strengthen memorization skills.