Sticky threads are always a good starting point when browsing a new forum or site.

If you check out this sticky thread, you shall see links to different pointers on FT:

http://www.flyertalk.com/forum/infor...faqs-more.html

Don't forget to read the wikipost at the very top of said thread. Right under the Getting the Most Out of FlyerTalk section, the link to FT Glossary was provided. Study this other thread if you don't get how wikiposts work on FT:

http://www.flyertalk.com/forum/techn...solidated.html

There's no way to have a catch-all list, no matter where you look. If you are looking for airline/forum-specific acronyms, you better ask in that designated forum. This sticky thread shall keep you up with the structure of FT so you'll know where better to look or ask for info:

http://www.flyertalk.com/forum/infor...tion-desk.html

Welcome to FT!