The term 'Masked Worker' can be summarized as a welder, which is a six-letter job description. A welder is a skilled tradesperson who specializes in joining materials together using heat and pressure. Welders typically use a variety of tools and techniques to join metal parts, such as arc welding, oxy-fuel welding, and gas tungsten arc welding. Welders must wear protective gear, such as masks and gloves, to protect themselves from the intense heat and sparks generated during the welding process.