efficiency
noun
ef·fi·cien·cy
i-ˈfi-shən-sē 
plural efficiencies
1
: the quality or degree of being efficient
2
a
: efficient operation
b(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
Synonyms
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 on the Web
The coffee giant hopes to reclaim its coffeehouse crown by focusing on speed, service, and operational efficiency.
—
Francisco Velasquez, Quartz, 15 Nov. 2024
Network Discovery claims to enhance network management efficiency.
—PCMAG, 7 Nov. 2024
Observations on the efficiency of the Japanese weasel, Mustela sibirica itatsi Temminck and Schlegel, as a rat-control agent in the Ryukyus
PLOS ONE.
—Allison Futterman, Discover Magazine, 6 Nov. 2024
This comes as the Republican nominee and former president has promised to appoint Musk as the head of a government efficiency commission, if elected.
—Sean Conlon, CNBC, 5 Nov. 2024
See all Example Sentences for efficiency 
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Francisco Velasquez, Quartz, 15 Nov. 2024
Network Discovery claims to enhance network management efficiency.
—PCMAG, 7 Nov. 2024
Observations on the efficiency of the Japanese weasel, Mustela sibirica itatsi Temminck and Schlegel, as a rat-control agent in the Ryukyus
PLOS ONE.
—Allison Futterman, Discover Magazine, 6 Nov. 2024
This comes as the Republican nominee and former president has promised to appoint Musk as the head of a government efficiency commission, if elected.
—Sean Conlon, CNBC, 5 Nov. 2024
See all Example Sentences for efficiency
Cite this Entry
“Efficiency.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/efficiency. Accessed 28 Nov. 2024.
Copy CitationKids Definition
efficiency
noun
ef·fi·cien·cy
i-ˈfish-ən-sē
plural efficiencies
1
: the quality or degree of being efficient
2
: efficient operation
3
: the ratio of the useful energy delivered by a machine to the energy supplied to it
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