Stands for
An Awkward Rush and Mission Savers (I know it makes no sense- the thing was on a
Japanese game called Wild Arms). ARMS are weapons like a
gun or some other
technological advance that only
certain people (in Wild Arms, only
Rudy and
Calamity Jane could use them as far as the player was concerned). These ARMS are the
remnants of a lost civilization, but certain
armssmiths can work on them and
upgrade them. Though, where they get their business is
anyone's guess...
Also, since playing Wild Arms 2, I find that it is also the name of the group founded by Irving to protect the world. Apparently, it means something else in the English version, but I can't remember what it said. If I remember, I will be sure to put it here.