The term 'kitchen machine' can refer to a variety of different appliances, but in this case it is referring to a SLICER, which is a 6-letter word. A SLICER is a kitchen appliance used to cut food into thin slices. It is often used to cut vegetables, fruits, and meats into uniform slices for cooking or presentation purposes. Slicers are usually powered by electricity and feature a sharp blade that is adjustable to different thicknesses.