Smoking in cooking refers to cooking a food using dry heat and allowing it to cook in the smoke from the heat.

It is mainly used for the long smoking process of meat smoking and cooking.

cooking oil, smoking, electric

If you're talking about the Culinary Triangle, it involves three types of cooking, boiling, roasting, and smoking, commonly done to meat.

Cooking out, what most of us do in our backyards is called grilling. BBQ is the practice of slow cooking meats, often taking days. Grilling is a hot and fast cooking method, where as BBQ is more similar to smoking.