The SAT is a standardized test taken by millions of American high-schoolers every year as part of their college application process. The name of the test formerly stood for the Scholastic Aptitude Test, and later the Scholastic Assessment Test, but now doesn't stand for anything -- it's just the SAT (kind of like how "KFC" no longer stands for Kentucky Fried Chicken!).
The SAT has been revised and re-formatted over the years, but in its current iteration is scored in a scale of 200 to 800 for each of two sections (writing/language and math) for a total possible perfect score of 1600. The score is based on the total number of correct answers, so there is no penalty for guessing. The writing/language portion of the SAT tests the student's ability to improve language with sentence structure or word choice. Therefore it is essential that SAT takers learn a wide range of vocabulary words that may show up on the test, and to know the best usages of those words in context. Test your knowledge of these SAT vocabulary words!