Englishfor English speakers
roll
Verb
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To roll something is to make it round by bending it around many times.
She rolled the newspaper into a long, thin rod.
roll
Noun
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A roll is something round that was made by rolling.
The cloth in the store is in big rolls.
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A roll is a bun: a small, round piece of bread.
I like jelly rolls!
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.