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English definition of “device”

device

noun [C]     /dɪˈvaɪs/
an object or machine which has been invented for a particular purpose : biotech and medical devices You should not use any personal electronic device, such as a cell phone , while driving . mobile / wireless / handheld devices
a method that is used to produce a particular effect : A trademark can be a powerful marketing device.
(Definition of device noun from the Cambridge Business English Dictionary © Cambridge University Press)
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