TOEFL Vocabulary AudioLearn includes more than 500 words that commonly appear on the 2012 TOEFL exam, making it your indispensable study guide when it comes to TOEFL vocabulary! Key Topics: Spelling Syntax Sentence Usage Pronunciation And much, much more! Improve your spelling. Gain a better understanding of sentence structure. Increase your TOEFL scores. You can study TOEFL Vocabulary words at the gym, review spelling and sentence usage in the car, and memorize new words before you sleep at night.