Bug#305061: Documention on what "rc" "ii" and other codes mean

["J. Grant" <jg@jguk.org>]

Package: dpkg
Version: 1.10.27

Hello,

I am trying to find out what the codes mean in the output which I cannot 
find documentation on at present..

I did dpkg -l |less

and I get these headings

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: 
uppercase=bad)
||/ Name           Version        Description
+++-==============-==============-===========================================

However, there is no expanation here or in the "man dpkg" what all the 
codes mean?

What does "ii" mean? and "rc"?

# dpkg -l |grep american
rc  iamerican      3.1.20.0-4     An American English dictionary for ispell
rc  wamerican      5-4            American English dictionary words for 
/usr/s

If I do this " apt-get --purge remove iamerican wamerican" should the 
packages still keep showing up as "rc"?

I wonder if this functionality could be documented somewhere..?  Or have 
I missed some big chunk of documentation..?

Kind regards
JG