Each Jack Graystone Mystery, SAT Vocabulary Edition, will contain approximately 300 vocabulary words, which are potentially found on the current SAT’s. These words come from several sources including Vocabulary.com, Majortests.com, and Quizlet.com. Since many words have multiple meanings, some words may contain two or more definitions. In most cases, the first definition listed is the definition utilized within the story. Merriam-Webster.com, Vocabulary.com, and Wordsinasentence.com were the primary sources used for the definitions provided.