FromLatinefficientia, equivalent toefficient +-cy.
- IPA(key): /ɪˈfɪʃ.ən.si/,[ɪˈfɪʃn̩si],/ɪˈfɪʃ.ɪn.si/
efficiency (countable anduncountable,pluralefficiencies)
- Theextent to which aresource is used for theintendedpurpose.
- Antonyms:inefficiency,wastefulness
2025 March 13, Gabe Cohen, “Head of Postal Service agrees to let DOGE work with USPS”, inCNN[1]:In a letter DeJoy sent to Congress on Thursday, he said DOGE teams will “assist us in identifying and achieving furtherefficiencies,” saying the Elon Musk-led agency will focus on improving the management of USPS retirement assets and the Workers’ Compensation Program, as well as addressing the agency’s legislative mandates and regulatory requirements.
- (engineering, physics) Theratio ofusefulwork toenergyexpended. Often given the symbolη.
Theefficiency of this loudspeaker is 40%.
- The extent to whichtime is well used for the intendedtask.
Theefficiency of the planning department is deplorable.
1951 October, H. A. Vallance, “Across Denmark by Lyntog”, inRailway Magazine, page658:Even at the busiest periods, an air of quiet orderliness pervades the hall, and the first impression gained by the traveller is one ofefficiency, neatness and cleanliness.
2012 September 7, Phil McNulty, “Moldova 0-5 England”, inBBC Sport[2]:The display and result must be placed in the context that was it was against a side that looked every bit their Fifa world ranking of 141 - but England completed the job withefficiency to record their biggest away win in 19 years.
- (dated) Thequality of producing aneffect or effects.
- (US) A one-roomapartment.
- Synonyms:efficiency apartment,studio apartment,(UK, Ireland)bedsit
I have anefficiency available June through July.
fully-furnishedefficiencies
extent to which time is well used
extent to which a resource is used for the intended purpose
Translations to be checked
efficiency on Wikipedia.Wikipedia