Tra từ device - Từ điển Oxford Advanced Learner 8th

de·vice AW [device devices] BrE [dɪˈvaɪs] NAmE [dɪˈvaɪs] noun
1. an object or a piece of equipment that has been designed to do a particular job
•a water-saving device
• This device enables deaf people to communicate by typing messages instead of speaking.
•electrical labour-saving devices around the home
2. a bomb or weapon that will explode
• A powerful device exploded outside the station.
•the world's first atomic device
3. a method of doing sth that produces a particular result or effect
• Sending advertising by email is very successful as a marketing device.
4. a plan or trick that is used to get sth that sb wants
• The report was a device used to hide rather than reveal problems.
Idiom: ↑leave somebody to their own devices

Word Origin:
Middle English: from Old French devis, based on Latin divis- ‘divided’, from the verb dividere. The original sense was ‘desire or intention’, found now only in leave someone to their own devices (which has become associated with sense 3).

Thesaurus:
device noun
1. C
•labour-saving devices in the home
gadget • • tool • • instrument • • aid • |formal implement • • utensil •
a useful device/gadget/tool/aid
an electrical/electronic device/gadget
a measuring/navigation/navigational device/tool/instrument
2. C
•Direct mailing can be successful as a marketing device.
tactic • |BrE manoeuvre • |AmE maneuver • |often disapproving ploy • • ruse •
a device/tactic/ploy/ruse for (doing) sth
a clever device/manoeuvre/ploy/ruse
use a device/tactic/manoeuvre/ploy

Example Bank:
•All new cars are now fitted with these safety devices.
•An incendiary device exploded in the store, setting fire to furniture.
•He measured the room using an ingenious new electronic device.
•Now connect the device to your computer.
•Police found several bugging devices in the room.
•The device consists of a large wheel mounted on a metal post.
•The device uses a transmitter that connects to your computer.
•The device worked exactly as I'd hoped.
•a tiny device designed to trace telephone calls
•a useful device for checking electrical circuits
•improvised explosive devices
•A package containing an incendiary device was found on Tuesday night.
•Aid workers have to use whatever devices are available for making sure help gets to those most in need.
•Direct mailing is extremely successful as a marketing device.
•It was the world's first atomic device.
•The twentieth century saw the introduction of labour-saving devices around the home.
•They employ several successful management devices.
•This device can be seem as somewhat dishonest.
•This device enables pilots to navigate with pinpoint accuracy.
•This was originally intended as a device for making sure taxes were paid on time.
•We use a range of devices for testing children's numerical ability.