Dictionary of programming terms

It really doesn''t matter how experienced a coder you are, eventually you''ll run across a new term that you just can''t find a *good* definition of. To make things easier, (and because I''ve come across a couple that I have questions about) I think it''d be cool to have a single place to collect these definitions as people ask about them. It also makes it easier if you don''t have to search through all of the forums to find if someone''s asked about a term before. That having said, here are a couple of terms I''ve come across, to get the ball rolling. RTTI Callback function late-binding