any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks | a car that has top that can be folded or removed |
a motor vehicle with four wheels; usually propelled by an internal combustion engine | a sofa that can be converted into a bed |
a device for overcoming resistance at one point by applying force at some other point | a corporate security (usually bonds or preferred stock) that can be exchanged for another form of security (usually common stock) |
a group that controls the activities of a political party | |
an intricate organization that accomplishes its goals efficiently | |
an efficient person | |