The dictionary presents information about human language, linguistics as a science. His articles reveal the features of the sound, grammatical, lexical structure of languages, talk about theories of the origin of the language, the laws of its development. It provides information about the languages ​ ​ of the world, about families and groups of languages, about scripts and the history of writing. Information on different stages of linguistics development, its main schools, directions, sections is presented. Pointers are given. The dictionary is designed for linguists, teachers and philological students, specialists in linguistics-related sciences and everyone who is interested in the language.