WordBook is an online reference resource that brings together Ukrainian-language dictionaries, encyclopedias, and guides across a wide range of subjects. Its collection helps readers look up words and terms, explore concepts, and find information related to language, culture, history, and other fields. The site organizes materials into categories, making it easier to browse resources on spelling and grammar, synonyms, idioms, slang, philology, economics, law, philosophy, religion, science, technology, literature, and the arts.

Featured works include major explanatory dictionaries of Ukrainian, guides to foreign words and expressions, phraseological and terminology dictionaries, and reference works on writers such as Ivan Franko and Vasyl Stus. WordBook also includes resources for English and Russian, including an English-Ukrainian film terminology dictionary and a Russian-Ukrainian academic dictionary. Designed for convenient online access, the collection serves students, professionals, and anyone seeking knowledge or language support. WordBook presents dictionaries and reference works as practical tools for learning and research, while encouraging users to consider the reliability and currency of information found online.