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Welcome to the home page of NASPA Zyzzyva, a word study program originally written by Michael Thelen and now maintained by the Zyzzyva Committee. Zyzzyva is a free download, but its use with some copyrighted lexicons may require authentication.
The current version of NASPA Zyzzyva is Version 3.1.0, released on 2016-08-23, and includes OTCWL2016.