Synonyms: well, wellspring, fountainhead
Definition: an abundant source
Usage: she was a well of information
Similar words: source
Definition: a document (or organization) from which information is obtained
Usage: the reporter had two sources for the story
Synonyms: wellhead, wellspring
Definition: the source of water for a well
Similar words: root, rootage, source, beginning, origin
Definition: the place where something begins, where it springs into being
Usage: the Italian beginning of the Renaissance; Jupiter was the origin of the radiation; Pittsburgh is the source of the Ohio River; communism's Russian root