Spotlight: The Theosophical Glossary by H.P. Blavatsky

http://theosophicalglossary.net/
(online)


https://shoppingcartsecure.com/cart32.exe/2137487244-AddItem
(hardcopy)



This book was written by Madame Blavatsky, and is an excellent source of definitions of Theosophical terms.

You may also want to take a look at Collation of Theosophical Glossaries by Scott J. Osterhage

http://www.theosophy-nw.org/theosnw/ctg/ctg-hp.htm