encyclopedia
Definitions
A book or set of books giving information on many subjects or on many aspects of one subject and typically arranged alphabetically.
A comprehensive reference work containing articles on a wide range of subjects or a specific field of knowledge.
Examples
I spent the afternoon reading through the encyclopedia to learn more about ancient civilizations.
The library's collection includes a comprehensive encyclopedia that covers almost every scientific topic imaginable.
Synonyms
compendium reference work treasury of knowledge cyclopedia almanac handbook
Antonyms
fragment brief note single article sketch incomplete summary