i ran across the word "argot" in an article on mcveigh this morning, and had to atomicize it. the context was "And the 19 children buried in smoldering debris? He called them “collateral damage” — military argot for civilian deaths in a military strike."

somehow i've never seen this word before... is it totally interchangeable with 'jargon'? and how do you all pronounce it: AR-goe or ARget?