Used other than figuratively or idiomatically: see water, power.

(physics) The ratio of the power produced by an object to its mass.

A station built for the production of electric power; a power station. / The portion of a vehicle devoted to providing energy for motion; the engine or motor.

(sometimes figuratively) The power that enables something to move. / (rail transport, collectively) The locomotives that operate on a railway.

(colloquial) Children's ability to make their parents buy something or do something for them by continually asking until the parents agree to do it.

(set theory, of a set S) The set whose elements comprise all the subsets of S (including the empty set and S itself).

A short sleep taken in the daytime in order to refresh a person and generally terminated before deep sleep begins so as not to leave the sleeper drowsy.

A conservative style of business dress that gives an impression of confidence and efficiency and was used especially by women in the 1970s and 1980s to succeed in a male-dominated business world.

A working lunch at which important discussions may be held, and important decisions made.

Having unlimited power; omnipotent.