Englishfor English speakers
performance
Noun
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A performance is a show of acting or music.
We went to see a performance by local musicians last night.
The acting was good, but the noise made it difficult to enjoy the performance.
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The performance of a person, machine, company, etc. is how well it does its job.
After a year of losing money, the company needs to improve performance.
This car is a high performance vehicle.
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.