Never Be at a Loss for Words Again. The words people use say a lot about who they are and where they are headed. Whether they want to express themselves clearly to impress a prospective employer during a job interview, or just brush up on those pesky words that are encountered every so often while reading the newspaper, Kaplan Word Power® is the essential tool to help expand a daily vocabulary. Energize Vocabulary with: 1. Must-know everyday words that are the essentials of a good vocabulary; 2. Engaging lessons to help utilize words in context; 3. Hot words often found on standardized tests like the SAT and GRE; 4. Tips to help figure out new words, roots, and more.