617 entries is nothing. Look at Black's Law Dictionary. The problem with Black's is that as much as a third is archaic. Maybe half. Uncommon words and phrases that lawyers use would be useful--"affiant" is missing, btw--but at best this is a minor glossary. "Process server" is also missing. I once saw this translated as "judicial notifier." It's a phrase "uncommon" lawyers have trouble with, since it requires an understanding of two concepts that have nothing to do with each other.

The idea of using the program for specialized vocabulary, or building your own glossary, is much more interesting.