Appliance
Part of speech: noun
Definition: The act of applying; application. An implement, an instrument or apparatus designed (or at least used) as a means to a specific end (often specified). Specifically: A non-manual apparatus or device, powered electrically or by another small motor, used in homes to perform domestic functions (household appliance) and/or in offices. An attachment, some equipment (or - piece) to adapt another tool or machine to such specific purpose (obsolete) A compliance
Example sentence: My great uncle, my mom's uncle, had an appliance store in Philadelphia, and it was called Peter's TV. They sold stereos and televisions and washers, dryers, all kinds of stuff.
Contraption
Part of speech: noun
Definition: A mechanical device of any sort, especially one that is complicated.