Barbecue (also barbeque, BBQ and barby/barbies) is both a cooking method and an apparatus. The generally accepted differences between barbecuing and grilling are the cooking times and the types of heat used. Grilling is generally done quickly over moderate-to-high direct heat with little smoke, while barbecuing is done slowly over low indirect heat and the food is flavored by the smoking process.
The word barbecue, when used as a noun, can refer to the cooking method, the meat cooked in this way, or to the cooking apparatus itself (the "barbecue grill" or simply "barbecue"). Used as an adjective, barbecued refers to foods cooked by this method. The term is also used as a verb for the act of cooking food in this manner. Barbecuing is usually done in an outdoor environment by smoking the meat over wood or charcoal. Restaurant barbecue may be cooked in large brick or metal ovens specifically designed for that purpose. Barbecuing has numerous regional variations and is practiced around many different areas of the world.