Grilling uses gas.
Barbequing uses charcoal/wood etc.
I know I'll start a thing with the Kansas City and Texas crowd, but there is a difference between grilling, barbequing, and barbeque.
Complex, I know, but suffice it to say that grilling is for Bob Costas'as's (I hope you like the punctuation). Barbequing takes time, finesse, and effort, like it should. It's imprecise, organic, and has soul. Grilling is having another oven outside.

