efficiency

Noun
  1. The ratio of the output to the input of any system (synset 113843205)
    is a type of: ratio - the relative magnitudes of two quantities (usually expressed as a quotient)
    subtypes: figure of merit - a numerical expression representing the efficiency of a given system, material, or procedure
  2. Skillfulness in avoiding wasted time and effort (synset 105652372)
    "she did the work with great efficiency"
    is a type of: skillfulness - the state of being cognitively skillful
    subtypes: economy - the efficient use of resources

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