This index is woefully outdated, especially with the additions to lore and rules over the years. Please provide any additional acronyms, abbreviations, and terms that you would like to see incorporated into this index.
Those acronyms and abbreviations that have only one meaning will be incorporated into the board's acronym listing software, which will automatically create the acronym BBCode with the spelled out term, helping members to better understand the acronyms and abbreviations that are being used.
Those acronyms and abbreviations that have multiple uses, unfortunately, can't be included the board's acronym listing software, so this index will help.
Terms are another thing entirely and will be provided here as a basic primer (e.g., the Astartes Praeses).