machine (a piece of equipment with moving parts designed to perform a specific kind of work): A washing machine operates using a small electric motor.
motor (a device that uses electricity or fuel to create movement): The ceiling fan needs a new motor.
device (a machine or tool designed to do a particular job): We sell satellite receivers, refrigerators, TVs, and other electronic devices.
engine (a machine that burns fuel to create motion): The car accelerates like a rocket since I installed a new engine.
unit (a machine or part of a machine or system that does a particular job): This is the central heating unit. The computer’s central processing unit is not working.
appliance (a piece of equipment designed to carry out a specific task): They repair modern heating appliances of all types.
contraption (a device or machine that looks strange or complicated): I can’t understand how this contraption works.
