efficiency

As a noun efficiency

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

As an adjective productive is

capable of producing something, especially in abundance; fertile.

As nouns the difference between efficiencies and efficiency

is that efficiencies is plural of lang=en while efficiency is the extent to which time is well used for the intended task.

As nouns the difference between efficiency and conformity

is that efficiency is the extent to which time is well used for the intended task while conformity is state of things being similar or identical.

As a noun efficiency

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

As an adjective duty is

hollow (having an empty space inside).

As nouns the difference between utilization and efficiency

is that utilization is an alternative spelling of lang=en while efficiency is the extent to which time is well used for the intended task.

As nouns the difference between utility and efficiency

is that utility is the state or condition of being useful; usefulness while efficiency is the extent to which time is well used for the intended task.

As nouns the difference between efficiency and readiness

is that efficiency is the extent to which time is well used for the intended task while readiness is the state or degree of being ready.

Vigor is a related term of efficiency.

As nouns the difference between vigor and efficiency

is that vigor is while efficiency is the extent to which time is well used for the intended task.

As nouns the difference between efficiency and efficientness

is that efficiency is the extent to which time is well used for the intended task while efficientness is the quality of being efficient; efficiency.

As a noun efficiency

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

As an adjective agile is

having the faculty of quick motion in the limbs; apt or ready to move; nimble; active; as, an agile boy; an agile tongue.