efficiency

As nouns the difference between efficiency and adept

is that efficiency is the extent to which time is well used for the intended task while adept is one fully skilled or well versed in anything; a proficient; as, adepts in philosophy.

As an adjective adept is

well skilled; completely versed; thoroughly proficient.

As nouns the difference between efficiency and adeptness

is that efficiency is the extent to which time is well used for the intended task while adeptness is the quality of being adept.

As nouns the difference between operation and efficiency

is that operation is the method by which a device performs its function while efficiency is the extent to which time is well used for the intended task.

Efficiency is a related term of ability.

As nouns the difference between efficiency and ability

is that efficiency is the extent to which time is well used for the intended task while ability is (obsolete) suitableness .

Power is a related term of efficiency.

As nouns the difference between power and efficiency

is that power is a button of a computer, a video game console, or similar device, that when pressed, causes the device to be either shut down or powered up while efficiency is the extent to which time is well used for the intended task.

Faculty is a related term of efficiency.

As nouns the difference between faculty and efficiency

is that faculty is the scholarly staff at colleges or universities, as opposed to the students or support staff while efficiency is the extent to which time is well used for the intended task.

Efficiency is a related term of aptitude.

As nouns the difference between efficiency and aptitude

is that efficiency is the extent to which time is well used for the intended task while aptitude is natural ability to acquire knowledge or skill.

As nouns the difference between efficiency and usefulness

is that efficiency is the extent to which time is well used for the intended task while usefulness is the quality of being useful, to which extent something is useful.

As nouns the difference between integrity and efficiency

is that integrity is steadfast adherence to a strict moral or ethical code while efficiency is the extent to which time is well used for the intended task.

Spirit is a related term of efficiency.

As nouns the difference between spirit and efficiency

is that spirit is spirit (alcohol) while efficiency is the extent to which time is well used for the intended task.