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Definitions for Efficiency

[1] the state or quality of being efficient, or able to accomplish something with the least waste of time and effort; competency in performance.
[2] accomplishment of or ability to accomplish a job with a minimum expenditure of time and effort: The assembly line increased industry's efficiency.
[3] the ratio of the work done or energy developed by a machine, engine, etc., to the energy supplied to it, usually expressed as a percentage.
[4] efficiency apartment.
[5] the quality or state of being efficient; competence; effectiveness
[6] the ratio of the useful work done by a machine, engine, device, etc, to the energy supplied to it, often expressed as a percentage See also thermal efficiency

Words related to Efficiency

readiness, productivity, ability, energy, talent, capability, expertise, performance, skill, competence, adaptability, facility, faculty, powerfulness, adequacy, thoroughness, competency, completeness, efficacy, resourcefulness

Words nearby Efficiency

effervescent salt, effete, efficacious, efficacity, efficacy, efficiency, efficiency apartment, efficiency expert, efficient, efficient cause, effie

Origin of Efficiency

1585–95; < Latin efficientia, equivalent to efficient- (see efficient) + -ia -y3

Other words from Efficiency

non·ef·fi·cien·cy , noun
su·per·ef·fi·cien·cy , noun, plural su·per·ef·fi·cien·cies.

Synonyms for Efficiency

ability, adaptability, capability, competence, energy, expertise, performance, productivity, readiness, skill, talent, abundance, address, adequacy, capableness, competency, completeness, economy, effectualness, efficacy, facility, faculty, know-how, potency, power, powerfulness, productiveness, proficiency, prowess, quantity, resourcefulness, response, skillfulness, suitability, suitableness, thoroughness