EFFICIENCY Synonyms: 22 Similar and Opposite Words

efficiency

noun

i-ˈfi-shən-sē

Definition of efficiency

as in efficacy

the power to produce a desired result the proven efficiency of meditation in reducing stress within the company's workforce

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Example Sentences

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Recent Examples of efficiency This power scheduling raises system utilization and reaches an overall operational efficiency of 96 percent. — Aman Tripathi, Interesting Engineering, 22 Aug. 2026 This efficiency means that researchers could potentially use the algorithm to help tackle other open problems in discrepancy theory, as well as questions in optimization theory, physics, finance, and more. — Quanta Magazine, 21 Aug. 2026 The Transit is powerful and has decent fuel efficiency for its size. — Charles Singh, USA Today, 21 Aug. 2026 Speed, efficiency, and safety are among the most crucial attributes of canal transport. — Scott Spires, Encyclopedia Britannica, 21 Aug. 2026 See All Example Sentences for efficiency

Recent Examples of Synonyms for efficiency

Noun

Marston’s company has applied for grants to evaluate the efficacy of its drones.

— Cindy Von Quednow, CNN Money, 24 Aug. 2026
The drawback of using essential oils to repel flies is that their efficacy is short-lived.

— Louise Parks, Martha Stewart, 21 Aug. 2026

Definition of efficacy

Noun

Implement a digital visual-management platform across six facilities to standardize workflows and improve infection prevention, care coordination, workforce effectiveness, quality, and patient safety.

— Arkansas Democrat-Gazette, Arkansas Online, 27 Aug. 2026
Apart from the penalty, Meta agreed as part of the settlement to algorithmic changes that could dampen engagement and the effectiveness of its advertising, dampening investor sentiment toward the resolution of the case.

— Tobias Burns, CNBC, 26 Aug. 2026