This book acquaints readers with the "tier-two" vocabulary words that often appear in ACT questions. While some of these words seem familiar, test-takers need to understand their exact use on the ACT to answer the questions correctly. In addition, understanding these words in advance will help test-takers save time reading the questions, allowing them to devote more time to answering them. A concise and accurate understanding of these words will also enable test-takers to zero in on the correct answer choice and understand what the ACT questions are looking for.