Power

1. Ability to do or undergo something.
2. (social) Ability to coerce, influence or control.
3. (physical) Effectiveness.
4. A large amount or number.
5. Any of the elementary forms or parts of machines: three primary (the lever, inclined plane, and pulley) and three secondary (the wheel-and-axle, wedge, and screw).

   the mechanical powers

6. A measure of the effectiveness that a force producing a physical effect has over time. If linear, the quotient of: (force multiplied by the displacement of or in an object) ÷ time. If rotational, the quotient of: (force multiplied by the angle of displacement) ÷ time.
7. A product of equal factors (and generalizations of this notion): x^n, read as "x to the power of n" or the like, is called a power and denotes the product x \times x \times \cdots \times x, where x appears n times in the product; x is called the base and n the exponent.
8. Cardinality.
9. The probability that a statistical test will reject the null hypothesis when the alternative hypothesis is true.
10. (in plural) In Christian angelology, an intermediate level of angels, ranked above archangels, but exact position varies by classification scheme.

1. To provide power for (a mechanical or electronic device).

   This CD player is powered by batteries.

2. To hit or kick something forcefully.
3. To enable or provide the impetus for.

adjective

Impressive.