Welding torches are an essential tool for welding and metalworking. However, there are several synonyms that can be used instead of "welding torches." These synonyms include: 1. Welding gun 2. Welding wand 3. Gas torch 4. Flame torch 5. Oxy-acetylene torch 6. Plasma torch 7. Cutting torch 8. Soldering iron 9. Brazing torch 10. Heating torch All of these synonyms refer to a tool that produces heat, flame, or plasma to fuse two pieces of metal together. Each synonym may have a slightly different application or use in the welding process, but they all ultimately serve the same purpose.