welder

/ˈwɛldər/
noun
  1. A person whose job is to join pieces of metal together by welding.
    • The welder carefully joined the two steel plates with a torch.
    • She trained for two years to become a certified welder.
    • The factory hired an experienced welder to repair the broken machinery.
  2. A machine or tool used for welding.
    • He plugged in the welder and adjusted the heat setting.
    • They bought a new welder for the workshop to handle thicker metals.
    • The portable welder can be used for repairs in the field.