The word 'power' can be defined as follows:
1) the capacity for doing or acting
2) great ability in doing or acting; strength; might
3) a right or privilege granted by a governing body in doing or enjoying something
4) authority or the right to control other people
5) the rate at which work is done
6) a number expressed as a quantity multiplied by itself; an exponent
7) electricity supplied to homes or businesses from a generating plant