This area allows you to upload one or more custom thesauri (synonym lists) for use by search profiles. An uploaded thesaurus is compiled and kept on Webinator. There is no way to download a thesaurus once uploaded so it's a good idea to keep a copy around in case you want to make modifications later on.
Each thesaurus may be used by zero or more profiles and should not be
deleted if it is in use by a profile.
Search options that affect the use of these thesauri are
Synonyms
(4.6.53),
Main Thesaurus
(4.6.54), and
Secondary Thesaurus
(4.6.55).
See section 5.3 for further details.