efficiency.
The extent to which a resource is used for the intended purpose.
Meaning & usage
The extent to which a resource is used for the intended purpose.
The extent to which a resource is used for the intended purpose. The ratio of useful work to energy expended. Often given the symbol η.
The efficiency of this loudspeaker is 40%.
The extent to which a resource is used for the intended purpose. The extent to which time is well used for the intended task.
The efficiency of the planning department is deplorable.
The quality of producing an effect or effects.
A one-room apartment.
I have an efficiency available June through July.
fully-furnished efficiencies
Where this word comes from
From Latin efficientia, equivalent to efficient + -cy.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.