efficiency

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efficiency ˈfɪʃənsi/ noun
plural efficiencies
efficiency
ˈfɪʃənsi/
noun
plural efficiencies
Learner's definition of EFFICIENCY
: the ability to do something or produce something without wasting materials, time, or energy : the quality or degree of being efficient
[noncount]
[plural]
(technical)
[count] US : efficiency apartment
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