Academic version of the Encyclopaedia Britannica, which is no longer published in print format. For a list of all editions of the Britannica held by Princeton, see the History Resource Guide. Includes the Merriam Webster Dictionary. Antiquity+
Considered the most authoritative and comprehensive English language dictionary in the world. Includes information on the English language, its history, and the social, cultural, and political influences that have shaped the language through the centuries.
While it is generally not advisable to use this as a source in an academic paper, the lists of works cited in Wikipedia articles can LEAD you to other great sources, especially on contemporary topics.
We have many specialized encyclopedias covering just about every field. This links to one list, and others might be found in the Subject pages for Articles and Databases.