Abbreviation list

Is there a comprehensive (or semi-comprehensive) on-line list of
commonly used PG-related abbreviations used in PostgreSQL documentation,
mail-lists, etc.? If there is not, would such a list make a reasonable
one-page addition to the PG manual?

Things like GUC and DDL for example. Couldn't find them in the user
documentation index.

I looked at what Google offered up with "GUC site:www.postgresql.org"
and got 64 results. Virtually all were links to the weekly news but I
found no result that said what GUC means.

Cheers,
Steve