Once you enable the abbreviations option on your dashboard, The CM Glossary Plugin will search and parse the code, looking for term abbreviations. If it finds any, it will automatically generate links to the current term page. Each abbreviation can only be connected to one glossary term.
In addition, the abbreviation will be displayed at the term page in the square brackets next to the term itself.
On the glossary index page the abbreviation will be listed separately although it will point out to the same term page as the full term.