efficiency

As nouns the difference between efficiency and competence

is that efficiency is the extent to which time is well used for the intended task while competence is the quality or state of being competent, i.e. able or suitable for a general role.

As nouns the difference between efficiency and skill

is that efficiency is the extent to which time is well used for the intended task while skill is capacity to do something well; technique, ability. Skills are usually acquired or learned, as opposed to abilities, which are often thought of as innate.

As a verb skill is

to set apart; separate.

As an adjective skill is

great, excellent.

In lang=en terms the difference between efficiency and competency

is that efficiency is the quality of producing an effect or effects while competency is meeting specified qualifications to perform.

As nouns the difference between efficiency and competency

is that efficiency is the extent to which time is well used for the intended task while competency is a sufficient supply (of).

As nouns the difference between efficiency and canine

is that efficiency is the extent to which time is well used for the intended task while canine is any member of caninae, the only living subfamily of canidae.

As an adjective canine is

of, or pertaining to, a dog or dogs.