The word “solder” is pronounced with a hard “s” and a long “o,” as in the word “old.” The “l” is silent. Therefore, the correct pronunciation is “SAH-der.”
Solder is a metal alloy that is used to join two pieces of metal together. It is typically made of tin and lead, but other metals, such as silver and copper, can also be used. Solder is melted and then applied to the joint, where it solidifies and forms a strong bond between the two pieces of metal.