I asked this in the channel, but no-one was able to answer, so I'm asking
again here:

Is it possible to define an abbreviation that is case sensitive (not a
dynamic one)?
I found that dabbrev-case-fold-search didn't seem to be what I was looking
for.

The motivating example for me was that I wanted "true" to expand but "True"
not to.

(Pardon me if my terms are not exactly right yet; I'm still relatively new
to emacs.)

Thank you.

-- 
          Alex R