Not the most useful directive

Imagine you have the 2 words magnification and magnificent
in your glossary, defining an entry:

magx => magnif{CompleteLastWord}

will display all the words found in your glossary which start with magnif in the expansion table.

Basically, this is something I would do using pick lists. I guess this directive was introduced before we had pick lists and I do not find it very useful anymore.

I guess I am not the only one NOT using it. :-)