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
Storage and efficiency challenges remain a constant barrier to clean energy scalability.
—
Tyler Shepherd, USA TODAY, 11 Dec. 2024
After considering those elements, the initial task transformed from verifying whether a client is lying to developing a methodology for scoring the clients to raise the efficiency of blocking questionable transactions even despite confirmation from the client.
—Dmitry Mishunin, Forbes, 10 Dec. 2024
The company remains focused on growth and operational efficiency.
—Quartz Bot, Quartz, 10 Dec. 2024
Toronto is building for the future, with Barrett averaging career-highs in points (23.3), assists (5.9), and efficiency (45.8% FG), and Quickley shining when healthy, despite missing significant time this season.
—Kristian Winfield, New York Daily News, 10 Dec. 2024
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.
Tyler Shepherd, USA TODAY, 11 Dec. 2024
After considering those elements, the initial task transformed from verifying whether a client is lying to developing a methodology for scoring the clients to raise the efficiency of blocking questionable transactions even despite confirmation from the client.
—Dmitry Mishunin, Forbes, 10 Dec. 2024
The company remains focused on growth and operational efficiency.
—Quartz Bot, Quartz, 10 Dec. 2024
Toronto is building for the future, with Barrett averaging career-highs in points (23.3), assists (5.9), and efficiency (45.8% FG), and Quickley shining when healthy, despite missing significant time this season.
—Kristian Winfield, New York Daily News, 10 Dec. 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 21 Dec. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share