This document discusses the purpose and proper use of dictionaries. It begins by defining a dictionary as a reference book that provides information about words, usually in alphabetical order, including their meanings, pronunciations, origins, and parts of speech. It then provides instructions on how to use a dictionary by understanding its organizational structure and guidewords. Finally, it outlines the various functions of a dictionary beyond simply defining words, such as providing synonyms, information on usage, and enriching one's vocabulary.