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Definition of efficiency
efficiencies
1 : the quality or degree of being efficient
2a : efficient operationb (1) : effective operation as measured by a comparison of production with cost (as in energy, time, and money) (2) : the ratio of the useful energy delivered by a dynamic system to the energy supplied to it
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Examples of efficiency in a Sentence
Because of her efficiency, we got all the work done in a few hours.
The factory was operating at peak efficiency.
A furnace with 80 percent fuel efficiency wastes 20 percent of its fuel.
The company is trying to lower costs and improve efficiencies.
Recent Examples of efficiency from the Web
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The beauty of Catapult, as Keith and Allen have come to find, is its efficiency and its specificity.
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For personnel chief Duke Tobin and coach Marvin Lewis, the advanced numbers are used to create efficiency in the time-sensitive areas of game-planning and pro scouting.
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Energy-efficiency rebates are available to commercial and residential BGE customers through the utility's Smart Energy Savers Program.
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That also marked the third straight Michigan House election since redistricting with double-digit efficiency gaps favoring Republicans.
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The AP also calculated efficiency gap scores for the U.S. House elections, although experts caution that those measurements are less statistically meaningful in states with few districts.
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In recent years, the Missouri auditor has issued reports questioning the efficiency and return on investment of various tax credits.
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Judge performance (and thus compensation) differently, by valuing contact and pitch efficiency over homers and Ks?
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Airbus is refining the double-decker A380's design, including adding 4.7-meter (15-foot) winglets, to boost fuel efficiency by as much as 4 percent.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'efficiency'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of efficiency
1633
EFFICIENCY Defined for English Language Learners
efficiency
playDefinition of efficiency for English Language Learners
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: the ability to do something or produce something without wasting materials, time, or energy : the quality or degree of being efficient ( technical )
EFFICIENCY Defined for Kids
efficiency
playDefinition of efficiency for Students
efficiencies
: the ability to do something or produce something without waste
Learn More about efficiency
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Thesaurus: All synonyms and antonyms for efficiency Spanish Central: Translation of efficiency Nglish: Translation of efficiency for Spanish speakers Britannica English: Translation of efficiency for Arabic speakers Britannica.com: Encyclopedia article about efficiency
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