There are many synonyms for the term "arc welder." Some of these include shielded metal arc welding (SMAW), manual metal arc welding (MMA), stick welding, and electric welding. These methods all use an electric current to generate heat and create a weld. SMAW and MMA are often used for welding thicker metal, while stick welding is commonly used for smaller projects. Electric welding is a more broad term that can refer to many different types of welding, but arc welding is one form of electric welding. Regardless of the method used, an arc welder is a skilled worker who uses electricity to create a bond between metals.