What term describes machines that we use in our homes?

The term that best describes machines used in homes is "appliance." Appliances are typically electrical or mechanical devices designed to perform specific tasks, often related to cooking, cleaning, or food preservation. Common examples include refrigerators, ovens, washing machines, and microwaves, which make daily household tasks more efficient and convenient.

While "gadget" can refer to small mechanical or electronic devices that may be found in a home, it often implies a novelty item or a tool with a specific function rather than the broader category of machines that fulfill essential household roles. Similarly, "device" is a general term for any piece of equipment or machinery that performs a function but does not specifically indicate the home context or the commonality associated with appliances. "Instrument" usually refers to devices used for precision tasks, such as measuring or controlling, often in scientific or musical contexts, rather than everyday home usage. Thus, "appliance" accurately captures the essence of machines found in residential settings.