There are several synonyms for the term "gold machine" which can be used depending on the context. Some of the most common synonyms include gold detector, gold digger, gold mine, gold panning machine, and gold rush. A gold detector is a device that detects small particles of gold in the ground, while a gold digger refers to a person who searches for gold in rivers and streams. A gold mine is a place where gold is mined, while the gold panning machine is an equipment used to separate gold from dirt and debris. Lastly, the term gold rush refers to a period in history when people flocked to areas in search of gold, such as the California gold rush.