Proficiency vs. Efficiency

Proficiencynoun

Ability, skill, competence.

Proficiencynoun

the quality of having great facility and competence

Proficiencynoun

skillfulness in the command of fundamentals deriving from practice and familiarity;

Efficiencynoun

The extent to which time is well used for the intended task.

Efficiencynoun

(dated) The quality of producing an effect or effects.

Efficiencynoun

The extent to which a resource, such as electricity, is used for the intended purpose; the ratio of useful work to energy expended.

Efficiencynoun

A one-room apartment.

Efficiencynoun

the ratio of the output to the input of any system

Efficiencynoun

skillfulness in avoiding wasted time and effort;

Efficiency

Efficiency is the (often measurable) ability to avoid wasting materials, energy, efforts, money, and time in doing something or in producing a desired result. In a more general sense, it is the ability to do things well, successfully, and without waste.