IPA: /ˈsɒldərər/
KK: /ˈsɒldərər/
A person who joins metal parts together by melting a filler metal and allowing it to flow into the joint.
The solderer carefully connected the wires to ensure a strong bond.
Solderer → The word is derived from 'solder' (from Old French *soudure*, meaning to join or unite) and the suffix '-er' (meaning a person who). A solderer is a person who joins or unites materials, typically metals, using solder.
Think of someone who 'joins' materials together ('solder') — the '-er' indicates that this person performs the action. A solderer is someone who unites things.