Englishfor English speakers
redundancy
Noun
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Redundancy is being redundant:
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# Redundancy is when you do something more times than you need to.
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# Redundancy is when the same information is given more than once.
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# Redundancy is when several parts of something (such as a machine) do the same this. This way it will still work if some parts are broken or gone.
reduction
Noun
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A reduction is how much something is reduced.
There was a 5% reduction in prices at the clothing store during the sale.