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
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 technology is simply too powerful and the efficiency gains too significant to ignore.
—
Lars Daniel, Forbes, 26 Feb. 2025
The distasteful use of AI as a substitute for genuine creativity in pursuit of efficiency or economic gain rightly caused backlash from diehard creatives.
—Solo Ceesay, Rolling Stone, 26 Feb. 2025
The changes at Starbucks are driven by a combination of financial challenges and operational efficiency goals.
—Ross Rosenfeld, Newsweek, 26 Feb. 2025
Volvo isn't providing EPA range or efficiency numbers yet, but on the generous WLTP cycle, the EX30 Cross Country is rated for 425 kilometers (264 miles) of range.
—Chad Kirchner, Ars Technica, 26 Feb. 2025
See All Example Sentences for efficiency
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Lars Daniel, Forbes, 26 Feb. 2025
The distasteful use of AI as a substitute for genuine creativity in pursuit of efficiency or economic gain rightly caused backlash from diehard creatives.
—Solo Ceesay, Rolling Stone, 26 Feb. 2025
The changes at Starbucks are driven by a combination of financial challenges and operational efficiency goals.
—Ross Rosenfeld, Newsweek, 26 Feb. 2025
Volvo isn't providing EPA range or efficiency numbers yet, but on the generous WLTP cycle, the EX30 Cross Country is rated for 425 kilometers (264 miles) of range.
—Chad Kirchner, Ars Technica, 26 Feb. 2025
See All Example Sentences for efficiency
Cite this Entry
“Efficiency.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/efficiency. Accessed 6 Mar. 2025.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share