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efficiency - definition and synonyms


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noun     efficiency pronunciation in American English
Word Forms
  1. 1
    [uncountable] the ability to work well and produce good results by using the available time, money, supplies, etc. in the most effective way

    the search for lower costs and greater efficiency

    The inspectors were impressed by the speed and efficiency of the new system.

    improve/increase efficiency:

    The new technology is aimed at improving efficiency and customer service.

  2. 2
    [countable] American an efficiency apartment

Open Dictionary


a rise in the level of a stream or river

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