This new dictionary defines the vocabulary students need to succeed in high school and beyond. Its entries include more than 2,000 key vocabulary items from the content areas of American and world history, social studies, language arts, math, chemistry, earth science, physics, and other disciplines. It also highlights and defines the more than 1,000 general vocabulary items used in academic writing and speech, such as "analyze," "derive," and "subsequent." In addition to academic content words, the dictionary provides full coverage of the everyday words and phrases students need to know.