Research Database
Dictionaries
A dictionary is a collection of words in one or more specific languages, listed alphabetically, with usage information, definitions, etymologies, phonetics, pronunciations, and other information.
Encyclopedias
An encyclopedia is a type of reference work a compendium holding a summary of information from either all branches of knowledge or a particular branch of knowledge.
Subject Encyclopedias
Thesaurus
A thesaurus is a book that lists words in groups of synonyms and related concepts.