Defining Synonyms

If you have a thesaurus of computer science terms, then you might define a synonym for the term XML as extensible markup language. This synonym enables queries on either of these terms to return the same documents.

XML
SYN Extensible Markup Language

You can use the SYN operator to expand XML into its synonyms:

'SYN(XML)'

is expanded to:

'XML, Extensible Markup Language'