Englishfor English speakers
device
Noun
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A device is a small machine or tool.
She has a device in her kitchen for cutting garlic.
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A device is a machine or part attached to a computer, such as a keyboard, mouse, printer etc.
The mouse is an important device for using the computer.
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A device is a clever way of doing something.
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A device is a logo.
specific
Adjective
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A specific idea, person, group etc. is the one that is of interest, or when someone knows exactly which one they're talking about.
The interviewer uses a checklist to make sure that specific areas are covered.
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If something is specific, it is detailed, clear, and limited.
Last time, he was happy to do anything, but feels this time he has to be more specific.
First I will talk about farming in general, and then I will talk about the specific problems of wheat farming.