SAT Vocab helps you review the most common SAT vocabulary words (over 1,000 words).
Word Mode tests your ability to match a definition with the correct word being displayed on screen.
Definition Mode quizzes you on the correct word for a displayed definition.
In both Word Mode and Definition Mode you can save words and definitions and review them later in Saved Words.
All Words allows you to browse the entire collection of words and view the definition for each word.