Englishfor English speakers
vacuum
Noun
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A vacuum is an area in space where no matter can be found.
A vacuum is often used in physics for experiments.
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A vacuum is another name for a vacuum cleaner.
vacuum
Verb
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If you vacuum, you clean something with a vacuum cleaner.
curing
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noun
(= hardening, set)
the process of becoming hard or solid by cooling or drying or crystallization
the hardening of concrete
he tested the set of the glue