As a newby, I'm having a little trouble with some of the acronyms. I know BOM, PIGS, MIL, and WIP, but I'm having trouble with some of the others: UFO, dd, for example, and I'm sure there are probably many others I haven't seen yet or that I'm leaving out. I would very much appreciate it if someone would give me a short tutorial on the acronyms commonly used on this site. Any you can think of would be great! Thanks.