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Noun: efficiency  i'fi-shun(t)-see
  1. The ratio of the output to the input of any system
     
  2. Skilfulness in avoiding wasted time and effort
    "she did the work with great efficiency"
     
  3. [N. Amer] A furnished apartment with a kitchenette and bathroom
    - efficiency apartment [N. Amer]

Derived forms: efficiencies

Type of: apartment, flat [Brit], ratio, skilfulness [Brit, Cdn], skillfulness [N. Amer]

Antonym: inefficiency

Encyclopedia: Efficiency

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