This document provides information on how to improve your English vocabulary by learning how to use a dictionary effectively. It discusses that a dictionary defines words, provides spelling, pronunciation, part of speech, origin, meaning, usage, synonyms and antonyms. It also lists 9 specific things that can be learned from a dictionary, including spelling, pronunciation, parts of speech, origin of words, meaning, usage, synonyms and antonyms, foreign words and phrases, and general information. The document encourages learning how to use the dictionary to clarify spelling, learn pronunciation, understand parts of speech and meanings, and get information on word usage and origins.