device (devices plural )
1 n-count A device is an object that has been invented for a particular purpose, for example for recording or measuring something.
...an electronic device that protects your vehicle 24 hours a day.
2 n-count A device is a method of achieving something.
They claim that military spending is used as a device for managing the economy.
3 If you leave someone to their own devices, you leave them alone to do as they wish. ♦
leave sb to their own devices phrase Left to his own devices, Osborn is a fluent<endash>and often original<endash>guitarist.
input device (input devices plural )An input device is a piece of computer equipment such as a keyboard which enables you to put information into a computer. (COMPUTING) n-count