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.
mark
Noun
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A mark is a single line left by a pen or pencil, or any small bit of color that got onto something.
You have a mark on your shirt from that tomato sauce you were eating.
mark
Verb
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To mark something is to put a mark on it.
The big rock marked the side of the car a little when she drove too close to it.
I marked the boxes so we would know which ones are mine.
Mark
Proper noun
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Mark is a male given name.