Power-average (related to Work)
Power is the rate at which work is done. It is equivalent to an amount of energy consumed per unit time. The same amount of work is done when carrying a load up a flight of stairs whether the person carrying it walks or runs, but more power is needed for running because the work is done in a shorter amount of time.
It is the average amount of work done or energy converted per unit of time. The average power is often simply called “power” when the context makes it clear.