Here's the direct link to our
Glossary that should help.
You may also want to look through the other options from the dropdown menu in
Help. There's also a useful sticky thread in
Information Desk Forum:
http://www.flyertalk.com/forum/infor...tion-desk.html. Generally speaking, the forum stickies in the fora you frequent shall give you some good pointers as well.
I personally use Google when necessary if I read a term I don't understand.