Englishfor English speakers
basic
Adjective
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When something is basic, it is simple.
Everyone in the army has to have basic training.
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When something is basic, it is fundamental or important.
Water is a basic necessity of human life: you cannot live without it.
basic
Noun
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Basics are things that are essential.
Beginners must first learn the basics before they become experts.
disk
Noun
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A disk is an object that is thin, flat, and circular.
A coin is a disk of metal.
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Something that looks like a disk.
Venus' disk blocked light from the Sun.
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A vinyl phonograph / gramophone record.
Turn the disk over after it has finished.
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A floppy disk.
He still uses floppy disks from 1979.
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A disc - either a CD-ROM, an audio CD, a DVD.
She burned some disks yesterday to back up the information on her computer.